A blind man is with his Seeing Eye dog. Both of them are standing at the corner and waiting for lights to change. The dog lifts his leg and pisses on blind mans legs. Then blind man reaches his pocket and gives the dog a biscuit.
Another man who is standing next to the blind man could not resist asking.
So he asks the blind man, "Excuse me, sir, but I just saw that your dog pissed on your leg. And then I
saw you give him a dog biscuit!"
The blind man says, "I know that. I was just trying to find out where his head is, so I can kick him in the
ass!"