A piece of string walks into a pub and the Barman says "We don't serve your sort in here" and throws him out.........
He walks back in a little later having ruffled his hair and rumpled his clothes........
" Oi ! I told you..........we don't serve your sort in here !" says the Barman.
"Why not ?" asks the piece of string.
" Because you're a piece of string, aren't you ?"
The piece of string draws himself up to his full height and says " I'm a frayed knot !!"...........