I love animals as much as the next gal, and sometimes, they make me insane. Witness, my sister's cat Raja, whom I am long-term-catsitting, again.
She shreds paper (she ate my sister's taxes one year), tracks litter everywhere, refuses to sleep at night, sheds like crazy unless I take protective measures,* and has a little bit of a bulimia issue. I can only feed her about 1/8th of a cup of food at any one time, which she will wolf down, and 10% of the time promptly regurgitate.
Perfect for apartment dwellers, there's no pesky security deposit (or other deposits, for that matter!)
I might be a little creeped out by these things, I'm not sure.
*Just kidding. She runs like crazy when I start up the vacuum. Hmm...with a little hotglue and Sharpie action, maybe I could mod a roomba with the siamese model so Raja would have a robot-cleaning twin, and someone to play with while I'm gone!