Pet human mha

Your pet becomes human? How are you going to deal with this and class A* you were walking home with your service animal and you got hit by a quirk. You went to sleep and your pet was gone. Later that day you see a person in your house that looks like your pet. How are you going to handle this and not get caught by class 1-A? you can determine how old they are by dog years or smth. 1:7 years ratio