Cat or Dog?

I had a friend offer us a cat over the weekend, and I reluctantly agreed. We have not had much luck with cats in the past. I told the kids that we will be getting a cat and Noah said that he hopes it's a big cat and not a kitten because the kittens aren't big enough to take care of themselves. Owen then chimes in with, "I hope it's a dog." Oh, is he going to be disappointed!