Here Comes the Boom Puns

So the string goes outside and waits for a while. He goes back in and sets at the bar and orders a beer. The bartender says “we don’t serve string here. So, frustrated the string goes back outside and sits n the curb. Boom, he gets run over and tumbles and starts to come apart.
He goes back into the same bar and orders a beer. The bartender looks closely at him and says “hey aren’t you that piece of string that was just in here?” The string looks him in the eye and says “nope, I’m a frayed knot!”