A rope walks into a bar.....
A rope walks into a bar. Bartender says, "Sorry, we don't server ropes in here. You'll have to leave." The rope goes outside, ties himself into a knot, then rubs himself roughly against the side of the building until he's all frayed and coming apart. He goes back into the bar. Bartender says, "Aren't you that rope I just ran out of here?" Rope says, "Nope, I'm a frayed knot."