Two strings go into a bar and ask for a drink each. The Bartender says, "I'm sorry, we don't let strings drink here." The two strings leave and go into another bar and ask for a drink each. The Bartender of this bar says, "I'm sorry, I'm not allowed to let strings drink." One of the strings gives up. The other bashes himself into walls, winds himself up, and rubs against the carpet. When the string goes into the bar, he asks for a drink. The Bartender says, "Sure! By the way, you haven't seen a couple of strings walking around, have you?" The string replies, "Sorry! I'm afraid not!" (A frayed knot)