Pesach and pets

During Pesach we are not permitted to eat, own, or benefit from chametz (leaven, but it's more complicated than that now). Traditional interpretations of halacha raise this as a problem for pet owners, because keeping your pets alive benefits you. So you have to find compliant forms of pet food, or send the pets elsewhere for a week, or perhaps sell the pets along with your chametz (I'm not sure if that works -- that would make you the custodian of someone else's pets for the week).

I think this interpretation of "benefit from" makes sense in the case of livestock (that you're ultimately going to profit from in some way), but I don't see it for pets. Pets aren't profit centers; they're family members -- you can argue about pecking order within the family, but that's another matter.

Still, I am mindful of the traditional problem. I can't change the food (one is on a special diet), and I'm not going to send them away or sell them, but I can still do something, without even invoking compassion or arguing about whether pikuach nefesh (serious health issues) applies to non-humans.

So, I hereby transfer ownership of the cat food in the house to the cats.