Maybe its just me - though Im sure not - but reading this thread exemplifies how nuts you can go trying to cater your experience, and then your application, to each school. From what I have gathered from various posts, Penn and CSU frown upon listing pets, unless you have a specific experience with them (i.e. showing, or I was a puppy raiser for seeing eye dogs). However, Va-Md encourages listing of pet ownership as animal experience.
Last time I checked we all submitted the VMCAS - a common application (at least the above schools accept it). How can you cater to two opposing ideas on one form? And even if you didn't put it on the VMCAS but included it on your additional Va-Md forms, im sure they'd go asking you why the two don't match up!
So not that I needed help realizing this - but theres more proof for us all we are not nuts and its just an impossibly crazy process!