I opened my door last night and a little cat ran in my house. I would say it was about 6-8 months. It's coat looked gray, but if you looked at it different it looked brown... kindof velvetty looking.. he also had a bobtail. Does this occur naturally, or do people have their cats tails bobbed.. if this occurs naturally what kindof of cat could it be.. I saw him again today also. He/she was very loving, and not shy at all.. and it had a nice looking cold.. not dirty looking or anything.. This leads me to believe that he was owned by someone.. would he most likely have ran out of the house or someone just tossed him out?