Two gentleman walked into the men's locker room at their prestigious country club; one was wearing a Harvard jacket, the other a Yale pullover.
After taking a leak, the Harvard man stopped to wash his hands--while the Yale man walked towards the door.
The Harvard man looked at the Yale man disapprovingly. "At Harvard, we take care to wash our hands after using the lavatory."
"Well," the Yale man replied, "at Yale, we know not to piss on our hands."