for you that find stray cats how do you go about determining if he's actually stray or is just a cat that goes outside or even ran away? I was walking home from school, on the railroad tracks, and there was a cat crouched in there looking at us. I said "hi kitty" he did not move or run, just sat and looked with no reaction at all. If I knew he was a stray I would have gone back with food and a carrier to see if I could catch him and get him to someplace safe but I have no idea if he was. So how do you prove they are stray?