My Dad keeps a cattle bump stick....He got bit seperating 2 ofour dogs that was fighting each other. His Rottie went in the backyard and tried to bully a little girl 37lbs and got his 110lb big ass tore up! my Dad heard it and went to save the big boy and got bit on the calf....by his Rott. He went and bought a bump stick the next day. They dont want nothing to do with that thing