Charlie's the old piece of lasso & he steps into a bar one day for a drink.
Bartender looks at him suspiciously and says, "Hey, Pal, we don't serve ropes here."
Charlie steps outside, ties himself into a clove hitch and unravels one of his ends
into a mess. He goes back inside, orders in a low voice, "Beer, please."
Bartender says, "Hey. aren't you that rope who was just in here?"
Charlie responds, "No, I'm a frayed knot."