Trevor is nice to everyone he meets and is very affectionate. However, when my brother walks into the same room as him or God forbid tries to pet him, my pet loses his mind and will growl and meow deeply and loudly. I know my brother has never been abusive torwards him. But my brother will make fun of him and call him names. Does Trevor know what he is saying and is that why he acts that way? I just don't understand how he will still be affectionate torwards some visitors who don't like cats but totally isolate my brother. I'm not sure how to help.