One of my daughters, Jean, has a dog which weighs well over 100 lbs., and two cats, one of which is just a very small kitten called Junior. My wife was talking one the phone to Jean, when she heard this awful noise in the house. She asked Jean what that was. She responded "That was Buck (the dog). Junior reached over and just touched him on the nose, and he went nuts!" It turns out that he had gotten too close for comfort once before, and the kitten bloodied his nose for him. Like an elephant, he didn't forget!