Two best friends, Sam Frank and Frank Sam, were both killed on the same day. Frank Sam ascends to Heaven while Sam Frank goes straight to Hell.
One day, Frank Sam comes to Saint Peter and asks if he can get a visitor pass to Hell to see his old buddy. St Peter is reluctant but finally agrees. "But be back by 10 pm!" he says.
Frank Sam descends into the Pit and finds his old friend has opened up a ightclub and is doing very well. They get to talking and drinking and telling old stories, and the time completely slips away from Frank Sam. At 3am he looks at his watch, yells, and races back up to Heaven.
St Peter is waiting for him, tapping his foot. "Do you know what time it is?! Where have you been, and what have you been doing? You're drunk, and stink of cigar smoke and your robe has beer stains on it and.. your harp, what happened to your harp?!"
Frank Sam looks all around, then yells "Oh my God! I left my harp in Sam Frank's disco!"