Lynn, cats can be stray and overweight - I picked Ginger up off the streets (literally) and he was overweight as he had people who fed him regularly, and he was quite a lazy cat. He was also incredibly friendly, and would go to anyone (my main concern with him, esp how I had got him) - some cats do seem to stay friendly to make sure they get regular food, all the ones I have picked up off the streets (admittedly not a lot) have been like that.