¶ 1. Colleen and Thomas Pawlowski appeal from a summary judgment granted in *802favor of American Family Mutual Insurance Company and Nancy L. Seefeldt. The Pawlowskis contend that the trial court erred in its determination that Seefeldt was not strictly liable under the dog bite statute, Wis. Stat. § 174.02 (2005-06),1 for injuries sustained by Colleen when a dog kept at Seefeldt's residence was let out the front door by its legal owner, Walter Waterman. The dog bite statute holds persons who "own, harbor or keep" a dog strictly liable for any damages the dog causes. A statutory keeper may be simultaneously liable with an owner. The trial court concluded that at the moment of injury, the dog's legal owner had control of the dog and, therefore, Seefeldt was not a statutory keeper under § 174.02. We reverse the trial court's ruling.
¶ 2. To be a keeper under Wis. Stat. § 174.02, one must exercise some measure of custody, care or control over the dog. Generally, one who provides shelter and protection for a dog in his or her own home, i.e., has custody, is a keeper. While a person's keeper status can change over time, with the focal point being the time of injury, Wisconsin case law instructs that a statutory keeper retains keeper status, despite an owner's temporary control, unless the keeper has relinquished custody, care and control of the dog to the owner at the time of the injury. Here, at the time of the injury, the dog was still kept at Seefeldt's home and the injury occurred when the dog charged out the door of her home. Thus, we conclude that she remained a keeper at the time of the injury, regardless of the fact that the legal owner let the dog out the door. We therefore conclude that she is liable for Colleen's injury and that *803the Pawlowskis are entitled to judgment as a matter of law We reverse the judgment and remand with directions to enter judgment in favor of the Pawlowskis.
BACKGROUND
¶ 3. Waterman and his two dogs moved into Seefeldt's residence in June 2003. Waterman had recently lost his job and needed a place to live that allowed dogs. He was unable to live with his girlfriend, as her apartment would not allow dogs. A mutual friend of Waterman and Seefeldt believed that Seefeldt's property, having a large fenced backyard, would be suitable for dogs. The friend approached Seefeldt about Waterman living there with the dogs until he found a job. Seefeldt also kept three dogs of her own at her house.
¶ 4. Waterman and the dogs lived at the house without event until October 26, 2003. On October 26, 2003, Seefeldt was home when Waterman opened the front door to go to the grocery store; Seefeldt stated in her deposition that Waterman "always put [the dogs] in his car and took them with him." The dogs immediately charged across the street, while Waterman chased them, and one of the dogs bit Colleen three times.
¶ 5. As a result of the incident, Colleen sustained sixteen puncture wounds and soft tissue damage. Waterman subsequently moved out of the house with his two dogs and could not be located for litigation. Colleen and her husband filed this action against Seefeldt and her insurer, American Family, on October 25, 2006.
¶ 6. Seefeldt and American Family sought summary judgment on grounds that the Pawlowskis failed to state a claim upon which relief could be granted because Seefeldt was not the "keeper" of the dogs at the time of the incident, and thus was not a statutory owner *804subject to liability under Wis. Stat. § 174.02.2 The Pawlowskis opposed, arguing that summary judgment on the issue of whether Seefeldt was a statutory keeper should be denied as there are "several genuine issues of material fact that should be resolved by a jury."3
¶ 7. After hearing oral argument from both parties, the trial court granted summary judgment for Seefeldt and American Family on grounds that Seefeldt was not a keeper of the dogs at the time of the attack, and to the extent Seefeldt was a keeper of the dogs, that status ended when Waterman "exercise[d] dominion" over the dogs by leaving the residence with them. The court noted that Seefeldt clearly would be the statutory keeper of the dogs if, for example, she had been the one leaving the house with them or if a different incident had occurred while Waterman was not there.
¶ 8. The Pawlowskis appeal.
DISCUSSION
¶ 9. Under Wis. Stat. § 174.02, an "owner of a dog is liable for the full amount of damages caused by the dog injuring or causing injury to a person, domestic animal or property." An "owner" is defined as "any *805person who owns, harbors or keeps a dog." Wis. Stat. § 174.001(5). The strict liability statute's purpose "is to protect those people who are not in a position to control the dog." Armstrong v. Milwaukee Mut. Ins. Co., 202 Wis. 2d 258, 268, 549 N.W.2d 723 (1996). At issue on appeal is (1) whether the fact that Seefeldt sheltered the dog at her residence rendered her a statutory "keeper" and therefore a statutory "owner" at the time of Colleen's injury and (2) if so, whether Seefeldt relinquished that status when the legal owner let his dog out the door of her home. The Pawlowskis argue that Seefeldt was a statutory owner and that her keeper status was not relinquished. The Pawlowskis contend that the trial court erred when it granted summary judgment in favor of Seefeldt.
¶ 10. The grant or denial of a motion for summary judgment is a matter of law that this court reviews de novo. Torgerson v. Journal/Sentinel, Inc., 210 Wis. 2d 524, 536, 563 N.W.2d 472 (1997). Summary judgment is appropriate if the "pleadings, depositions, answers to interrogatories, and admissions on file, together with the affidavits, if any, show that there is no genuine issue as to any material fact and that the moving party is entitled to a judgment as a matter of law." Wis. Stat. § 802.08(2). Whether Seefeldt was an "owner" of the dog at the time of the injury within the meaning of Wis. Stat. § 174.02 also presents a question of law which we review de novo. See Braverman v. Columbia Hosp., Inc., 2001 WI App 106, ¶ 12, 244 Wis. 2d 98, 629 N.W.2d 66 (application of statute to undisputed facts presents question of law).
¶ 11. In Wisconsin, both a legal owner and statutory keeper can be simultaneously strictly liable under *806Wis. Stat. § 174.02. See Fire Ins. Exch. v. Cincinnati Ins. Co., 2000 WI App 82, ¶ 18, 234 Wis. 2d 314, 610 N.W.2d 98. "Reading the statute to allow both owners and keepers to be liable comports with the statute's policy of assigning responsibility to those in a position to protect innocent third parties from dog bites." Id., ¶ 17. To be a keeper and therefore an owner, the person "must exercise some measure of custody, care or control over the dog." Armstrong, 202 Wis. 2d at 267 (citing Hagenau v. Millard, 182 Wis. 544, 547-48,195 N.W. 718 (1923)) (exercise control over, or furnish with shelter, protection or food); Janssen v. Voss, 189 Wis. 222, 224, 207 N.W. 279 (1926) (has custody, dominion or authority over); Koetting v. Conroy, 223 Wis. 550, 552, 270 N.W. 625 (1936) (keep at dwelling and feed); and Pattermann v. Pattermann, 173 Wis. 2d 143, 150, 496 N.W.2d 613 (Ct. App. 1992) (feed, care for, give shelter).4
¶ 12. Thus, one who shelters or maintains the dog on his or her premises, i.e., has custody of the dog at his or her home, is a "keeper." Armstrong, 202 Wis. 2d at 266 (persons who have fed, cared for, and given a dog shelter have been found to be keepers). However, "[t]he casual presence of dogs will not suffice to transform a person into a keeper; there must be evidence that the person has 'furnished them with shelter, protection, or food, or that they exercised control over the dogs.'" Id. (citing Hagenau, 182 Wis. at 547-48); see also Koetting, 223 Wis. at 552.
*807 Seefeldt as "Keeper"
¶ 13. At the outset, we address the issue of whether Seefeldt was a keeper within the meaning of Wis. Stat. § 174.02. The parties dispute whether Seefeldt's involvement with Waterman and his dogs was sufficient to qualify her as a keeper. Based on our review of the record, we conclude that Seefeldt was a keeper under § 174.02.
¶ 14. While the facts of record are sparse, it is undisputed that Waterman and his dogs had resided at Seefeldt's personal residence for approximately four months prior to the incident. By permitting Waterman's dogs to reside at her home over a period of months, Seefeldt provided them with both shelter and protection on an ongoing basis and was therefore a keeper. See, e.g., Armstrong, 202 Wis. 2d at 265 (one who has furnished a dog with shelter and protection is a keeper).
¶ 15. In so holding, we reject Seefeldt's attempt to liken herself to a "pro bono" landlord in an effort to escape keeper status. The cases cited by Seefeldt involve traditional landlord/tenant arrangements, not a situation where the owner of a home permits another person in her house to maintain a dog on the same premises. See Hagenau, 182 Wis. at 548-49 (commercial landlord not a keeper of tenant's dogs); Malone v. Fons, 217 Wis. 2d 746, 764-65, 580 N.W.2d 697 (Ct. App. 1998) (an off-premise landlord is not a "harborer" for purposes of Wis. Stat. § 174.001); Gonzales v. Wilkinson, 68 Wis. 2d 154, 158, 227 N.W.2d 907 (1975) (off-premise landlord and no allegation that the landlord was either an owner or keeper).5
*808¶ 16. Although Waterman did not pay rent, he contributed to some household duties. Even if we assume Seefeldt's arrangement with Waterman was akin to a landlord/tenant relationship, she was clearly an on-premise landlord. More to the point, she personally provided shelter and protection to the dog in her own home. Compare Malone, 217 Wis. 2d at 764, 766 (landlord is not strictly liable where "there is no evidence that [the landlord], aside from tacitly permitting [the tenant] to keep a dog in the house, afforded lodging, or gave shelter or refuge to the dog"). Here, there is no factual dispute as to whether Seefeldt provided the dog with shelter and protection in her home over a period of months. She did. As a result, Seefeldt is a keeper or statutory owner under Wis. Stat. § 174.02.
Keeper at the Time of the Injury
¶ 17. Seefeldt contends that she was not a keeper at the moment of the injury because Waterman went out the front door with the dog, and was thus exercising dominion and control over the dog.6 The parties each point to Armstrong, Janssen and Koetting in support of their respective positions. Our review of these Wisconsin cases leads us to conclude that Seefeldt had not relinquished keeper status, as she still maintained the *809dog at her premises, and in fact, the dog charged out at Colleen from Seefeldt's front door.
¶ 18. Turning first to Janssen, the issue presented was whether the mother of a fourteen-year-old dog owner "was a keeper of the dog at the time of the injury." Janssen, 189 Wis. at 222, 223. The dog owner's mother left town to attend a funeral and arranged for the dog to be placed at a dog hospital in her absence. Id. at 222-23. The son, who was the registered and licensed owner of the dog, was staying with another family in his mother's absence. Id. Despite the mother's explicit instructions to leave the dog at the hospital, her son took the dog from the hospital and tied it in the yard of the home where he was staying. Id. at 223. The dog bit a child who wandered into the yard. Id. The dog owner's mother was sued by the injured child. Id.
¶ 19. It was conceded that the mother in Janssen was the keeper of the dog up until she departed for the funeral — she bought the dog for her son, brought it to her home, and it had been maintained there at her expense and under her control for over a year prior to the incident. Id. at 223-24. However, when she placed the dog in the hospital with instructions that it was to stay there and the dog's owner removed the dog from the hospital and took it elsewhere, her authority and responsibility for the dog were at an end. In reaching its determination, the court observed:
Where the keeper is not the owner, it may be assumed, as a general proposition, that the dominion or authority of the keeper over the dog is a limited one, subject to be terminated at any time by the owner. In the absence of special circumstances, the owner may terminate the dominion of the keeper over the dog at any time and remove the dog from the custody of the keeper. The moment that is done, the dual authority theretofore *810exercised over the dog by the owner and the keeper is merged in the owner, and at that very moment the keeper's rights and responsibilities concerning the dog are at an end.
Id. at 224. The court concluded that by placing the dog in the dog hospital during her absence, the mother was "discharge[d] of duties resting upon her as keeper of the dog . . . ." Id. at 225.
¶ 20. The facts of Koetting, like Janssen, involve a parent homeowner who was not present at the time of injury. Koetting, 223 Wis. at 551-52. In Koetting, the adult daughter of the respondent owned the dog and lived in the respondent's home. Id. at 552. The adult daughter received board, lodging and support from her father. Id. The daughter's dog was allowed in the house and fed table scraps. Id. When the adult daughter took the dog to a park and let the dog off of its leash, the dog ran into the plaintiff from behind causing her to fall down, inflicting serious and permanent injury to her hips. Id. at 551. The father did not know that his daughter had the dog at the park and was not present at the time of the incident; however, he knew that "she was in the habit of taking it out" as she had at the time of injury. Id. at 551-52.
¶ 21. The father in Koetting argued that his keeper status ended when the owner took control of the dog by taking it out of the home for a walk. See id. at 554. The court expressly rejected the argument "that the keeper is not liable for injuries done by a dog if the dog is under the control of another at the immediate time." Id. at 555. The court noted that while the cases of Janssen and Hagenau "are claimed to sustain this view . . . the [dog bite] statute does not permit of such a limitation. It is inconsistent with the purpose of the statute. If one is the keeper of a dog, he is made *811responsible by the statute for injuries inflicted by it." Koetting, 223 Wis. at 555. Significantly, the court observed that in Janssen, the mother "particularly exempted herself from being its keeper by causing the dog to be kept for the period of her absence in a dog hospital." Koetting, 223 Wis. at 555. By contrast, in Hagenau, the defendant landlord was not a keeper because the dogs were kept by the owner in an apartment rented by the dog owner from the landlord, and there was no evidence that the landlord or his wife "furnished [the dogs] with shelter, protection, or food, or that they exercised control over the dogs." Hagenau, 182 Wis. at 548. Significantly, the Koetting court reviewed these cases and concluded that "[£]o be within the rule of [Hagenau], the defendant [Koetting] should have refused to permit the dog to be kept on his premises, should have compelled the daughter to keep it or have it kept elsewhere." Koetting, 223 Wis. at 555 (emphasis added).
¶ 22. Thus, the Koetting court held that the father had not relinquished keeper status despite the fact that the owner took the dog out of the home, because the father kept the dog on his premises. Id. at 554-55. The court noted that the father "doubtless exercised no control over the dog except that he controlled whether the dog should be kept in his home or not, and whether it should be fed from the family larder or not, but that sort of control is the thing that, in view of the statute and the [caselaw]. . . makes him the dog's keeper." Id. at 554. (emphasis added).
¶ 23. The holding in Koetting appears to govern the outcome in this case. However, Seefeldt contends, and the trial court agreed, that Amstrong modified Koetting and set forth the proposition that at the moment the owner takes control of the dog, the keeper *812status ends. We disagree. Our review of Armstrong, together with Janssen and Koetting, supports the conclusion that the keeper status ends when the keeper relinquishes not only control, but also shelter or custody — such that the custody, care and control of the dog are all exercised by the owner. It is then that the keeper's "authority" over the dog is at an end.
¶ 24. In Armstrong, the dog owners left their dog at a kennel while on vacation. The dog bit a part-time employee at the kennel when she attempted to return the dog to its kennel. Armstrong, 202 Wis. 2d at 261-62. One issue was whether the employee was a keeper. Id. at 264. Significantly, the court found that the kennel employee became a keeper because the owners "affirmatively relinquished physical custody and entrusted their dog to the employees at [the kennel] for the purpose of providing her with care." Id. at 267-68. Therefore, custody, care and control were all exercised by the employee. Id.
¶ 25. Seefeldt contends that in reaching its decision, the Armstrong court modified the holding in Koetting, or in the alternative, Seefeldt encourages this court to give less weight to Koetting as it "was decided over seventy years ago." While Koetting and many of the dog bite cases are dated, Armstrong was decided by the supreme court in 1996 and cited favorably to Koetting when setting forth its summary of the law. See Armstrong, 202 Wis. 2d at 266.
¶ 26. When looking to the "moment in time," Janssen, Koetting and Armstrong all find keeper status if the person exercised "custody, care or control" over the dog at the time of the injury. The disjunctive "or" recognizes that a dog may be under "dual authority" at the time of the injury. See Janssen, 189 Wis. at 224. If an individual retains the custody and care *813aspect of keeper status, he or she remains liable at the time of injury. Thus, because the mother in Janssen relinquished custody, care and control by taking the dog to the hospital, she relinquished keeper status. Id. at 225. In Armstrong, because the custody, care and control of the dog were transferred to the dog kennel employee by the owner, the employee acquired keeper status. Armstrong, 202 Wis. 2d at 267-68. The Koetting father's authority was not at an end when his adult daughter, the dog's owner, took the dog out of the home for a walk to the park. Koetting, 223 Wis. at 554.
¶ 27. The purpose of Wis. Stat. § 174.02 "is to protect those people who are not in a position to control the dog." Armstrong, 202 Wis. 2d at 268. This purpose is the common thread in each of the above cases, the landlord/tenant cases such as Hagenau, and those finding a dog's "casual presence" at a home does not give rise to keeper status: the statute holds strictly liable those who are in a position to protect innocent third parties by exercising the authority arising from their custody, care or control relationship with the dog and its owner. Here, at the time of injury, Seefeldt retained statutory ownership of the dog; she had not relinquished custody. She continued to maintain the dog at her home, and the incident happened when the dog charged out the front door of her home. Waterman and his dogs were still on her property when he let the dogs out the front door to go to his car. Whether she exercised control at that moment, the strict liability statute holds her liable as she was in a position to protect innocent persons walking by from dogs kept at her home. Unlike the facts of Janssen, Seefeldt had not expressly terminated her dual authority with the dog's owner, nor is there any evidence that *814Waterman had done so.7 As a result, we conclude that Seefeldt was a keeper at the time of Colleen's injury and is strictly liable under § 174.02.
CONCLUSION
¶ 28. We conclude as a matter of law that Seefeldt was a keeper of the dog and remained a keeper, despite the fact that the legal owner let the dog out the front door at the time of Colleen's injury. Because Seefeldt was a keeper at the time of injury, she is strictly liable as a statutory owner under Wis. Stat. § 174.02. We therefore reverse the trial court's grant of summary judgment in favor of Seefeldt and American Family. We remand with directions to enter judgment in favor of the Pawlowskis.8
*815By the Court. — Judgment reversed and cause remanded with directions.
All references to the Wisconsin Statutes are to the 2005-06 version unless otherwise noted.
The only cause of action under consideration is strict liability under Wis. Stat. § 174.02. The Pawlowskis have expressly disclaimed any pursuit of a common-law negligence claim.
While the Pawlowskis opposed summary judgment on the "keeper" issue, they did move for summary judgment on the issue of double damages. Because the trial court granted Seefeldt's motion for summary judgment on the keeper issue, it did not reach the issue of double damages. The Pawlowskis do not raise the issue of double damages on appeal.
Wisconsin JI — Civil 1391 provides:
A person is said to be a keeper of an animal if, even though not owning the animal, the person has possession and control of it or if the person permits another person who is a member of his or her family or household to maintain the animal on his or her premises.
The court's decision in Smaxwell v. Bayard, 2004 WI 101, ¶ 23, 274 Wis. 2d 278, 682 N.W.2d 923, clarified, "under Gonzales [v. Wilkinson, 68 Wis. 2d 154, 227 N.W.2d 907 (1975),] a *808landlord who is not the owner or keeper of his [or her] tenant's dog and who exercises no dominion or control over the dog cannot be held liable under common-law negligence for acts of his [or her] tenant's dog."
We note that there is some disagreement as to whether Waterman was actually "in control" of the dog when they left the home. Based on our holding that Seefeldt is a keeper regardless of whether the legal owner had control of the dog, we need not resolve this dispute.
The dissent contends that the majority ignores Janssen v. Voss, 189 Wis. 222, 207 N.W. 279 (1926), and fails to address whether Seefeldt's keeper status was terminated by Waterman's "assumption of dominion and control over the dog at the time of the injury to Colleen." Dissent, ¶¶ 40-42. To the contrary, we both consider Janssen and its analysis of a keeper's limited status, as well as whether either Seefeldt or Waterman terminated that limited status. Namely, as we discuss above, the mother in Janssen ended her limited keeper status (her custody as well as her authority and responsibilities) when she placed the dog outside the home in the kennel. The supreme court subsequently instructed that to be within that Janssen result, i.e., relinquishment of the limited keeper status to the owner, the father in Koetting would have had to compel the daughter to keep the dog elsewhere. Koetting v. Conroy, 223 Wis. 550, 555, 270 N.W. 625 (1936). Here, Seefeldt had not relinquished her limited keeper status (nor had Waterman terminated it), because the dog was still kept at her home and was on her property when it charged out the front door at Colleen. Waterman did not have exclusive custody, care and control of the dog.
The court is specifically authorized by statute to award summary judgment to the nonmoving party if it determines *815that party is entitled to judgment as a matter of law. See Wis. Stat. § 802.08(6). In other words, if the facts presented to the trial court are undisputed, the court may decide either party is entitled to a judgment as a matter of law, regardless of which moved for summary judgment.