A piece of strings walks into a bar and asks for a drink.
The barman says, ‘We don’t serve pieces of string here.’
So the string gets up, ties himself around the middle, and he pulls his ends out. And he proceeds to order drinks.
The barman says, ‘here, aren’t you a piece of string?’
And the piece of string, he says, ‘No, ’I'm a frayed knot.’