Three strings go into a bar after a hard day at work. They seat themselves. After 10 minutes still no service. so String 1 says to his buddies. "I'll go up to the barkeep and order us some drinks." he wanders upto to the bar.
String 1: (waves at the guy behind the counter) "Barkeep, I'll have 3 drinks for me and my pals."
Barkeep: (ignores the string)
String 1 returns to his friends. "The guy won't serve me."
String 2 "I'll get his attention." String 2 moves up in front of the barkeep.
String 2 (looks barkeep straight in the face.) "I'd like some service, please."
Barkeep (growls) "Can't you see we don't serve your kind."
String 2 returns to his friends. "Looks like we should go elsewhere. The barkeep says he won't serve us."
String 3 "I've got an idea." He ties himself up and adjusts the threads at one end. He then hops up to the Bar.
Barkeep (growls) "Look you. I told your buddy we don't serve your kind. You're a string ain't cha?"
String 3 (smiles) "Nope, I'm a Frayed Knot."