A piece of string walks into a bar one day and asks for a beer.
The bar tender says, “I’m sorry but we don’t serve string in this bar.”
The piece of string walks out and returns the next day asking for a beer.
No luck. The bar tender turns him away again, “Sorry but we don’t serve string in this bar.”
The next day the piece of string returns to the bar, but before entering, he ties a knot in
himself and messes up his hair.
He enters the bar and asks for a beer.
“Aren’t you a piece of string?” the bar tender asks.
“No,” he replies, “I’m a frayed knot.”