A furious pounding in a hotel room in the middle of the night awakened a number of guests.  The hotel manager went to the room, and when his knocks went unanswered, he let himself in.  He found an elderly man cursing and banging on the wall with both fists.

"Stop that immediately, sir!" the manager ordered.  "You're disturbing everyone in the hote..!l."

"Damn the hotel and everyone in it!" the elderly man hollered.  "I just got an erection..!!"

"Okay," said the hotel manager, "but why must you bang your fists against the wall..??"

"Because it's the first one I've had in years, and both of my hands are asleep..!!"