sometimes dogs just have bad feelings...one time, someone came over, a really nice guy, and stitch started barking and growling and would snap at him every time he went near her...shes such a nice dog!! never ever had done that b4!!! so we just figured that she had a sense that we didnt know about....i cant remember if something bad happened with that guy later...i may have read it in a book lol....i just keep thinking he was a criminal or something....ahhh my vivid imagination!