I couldn’t find any video of a man biting a dog. The best I could do was “fuzzy little bunny rabbit chases big black dog all around the barnyard.” The chickens, I regret to say, were not amused.
Because animals are so much more intelligent than we give them credit for, they can learn behaviors that don’t seem natural to them. The dog’s supposed to eat the bunny, right? But he’s not going to, and the bunny knows it.