leko has a halloween-themed tennis ball that is black and orange which my parents gave him several years ago. it's one of his favorite toys and periodically when he gets revved up, i give him the tennis ball and he "murders" it by furiously kicking it. he got himself all in a tizzy the other morning, so i tossed him the ball and caught a photo of him mid murder. it's the perfect little way for him to take out his frustration! so funny!