Why?

I had to go pee so into the men's room I went and as I was standing at the urinal I looked up saw this sign which read, " What are you looking up here for the joke is in your hand " It took me totally by surprise I dropped my d*** so quick it hit the edge of the urinal and I shook my head trying to get the thought of my c*** being a joke I couldn't realize that it was a joke but for some reason I couldn't get it out of my head it was a joke anyway. Gads that f***** me up for a whole week ..;..