Punny One...

This piece of string walks into a bar. But he's hardly through the door when the bartender yells, "Hey, String! Get outta here! We don't serve strings in here!"

Hours later, the piece of string is still trying to find a drink. So he ruffles his ends and contorts himself. As he goes into yet another bar, the bartender says, "Are you a piece of string? We don't serve strings in here!"

The piece of string says, "No, I'm a frayed knot."