My mum had 4 of her own at 1 point and also a cat flap which the neighbours cat used to come through to get fed, he ended up living with us and his owners (the neighbours) when he sat on our step she used to say his name to him (we called him another name) but never tried to get him in her house and she didn't even say anything about the fact he was living with us! When she moved out she left 2 dogs locked in the ally way, and left the other cat on the streets, and she got this cat after she realized her other 1 had moved into ours. Well anyway my mum phoned a rescue and they came and took the dogs and she took the kitten to the local CP. Shocking some people!!!!!!!!!!!!!!!!!!