A blind man was out walking with his seeing-eye dog when suddenly the animal paused and wet the man's leg. Bending down, the blind man stretched out his hand and patted the dog's head.

Having watched what happened, a bystander said, "Why are you patting him? That dog just peed on your leg!"

"I know," said the blind man, "but I gotta find his head before I can kick his butt."