Well, my DH and I spent this afternoon at a family gathering and we came home to three additional critters on our back porch. A puppy and two kittens. We have no idea where they came from. The dog doesn't have a collar or anything. He is very friendly and I would guess that he was used to being in a house since he tries to squeeze past me and get in my house. The kittens are friendly, so I'd guess they have been around people. I've checked with the closest neighbors and no one knows anything about them (we live in the country, so we don't have a lot of neighbors). I really think that someone must have just decided that our house looked like a good place to drop them off and leave them. They're cute and all, but it just bugs me that someone would just drop them off! We don't need or want any more dogs or cats at this point. I guess I'll give it a few days and see what happens... Edited to add: I just peeked outside and one of the kittens is curled up and is sleeping on top of the dog - so I would guess they're all from the same home for sure.