I am thinking of adopting a male pitt 1 yr old. I already own a 7 yr old chiuahaha/ yorkie mix female, and a female chow/ border collie mix 7 rs old. the pitt seems to be very sweet and needs a good home. He does not appear to be aggresive but i have only seen his interaction with humans. Any insight on how to introduce the animals, or if you have any thoughts on whether the adoption is a good idea it would be greatly appreciated.