Well today me and my boyfriend adopted a 1 1/2 year old pit bull today from a rescue, and he has been lovable fun- playing with all the dogs in the neighborhood and just been wonderful! But the only thing is that when he got on the couch first my fiancee hugged him-he snarled and jumped up. he has growled twice now in one day but every other time we play he is so much fun. Does anyone have any ideas or clues as to why or how to stop that??? Thanks!