Stop in for a cup of coffee
A piece of string walks into a bar and tries to order a beer...
The bartender points to a sign that states they do not serve string there...
Since this is the only bar in town and the string really wanted a beer, he went down the street and paid a thug to rough him up. the thug crumpled him up, stomped on him, pulled him apart, tied him in knots, etc. until he was looking very rough and beat up...
He goes back to the bar and orders another drink. The bartender looks at him and asks, "Aren't you that string that I kicked out of here earlier???"
The string replies, "No, I'm a frayed knot..." :D