A joke... I apologize in advance because I'm not the best joke re-teller
One day this piece of string is having a really bad day. His dog ran away and he lost his job. A REALLY terrible day at any rate. He leaves his work with all of his belongings and dreads going home to an empty house without his dog and decides to stop into a bar.
He walks up to the bar and says, "line up the bar with shots of whiskey...I've had a bad day." The bartender turns around and begins to line the bar with shots for this poor guy. Then he hesitates. "Hey man, I'm sorry but we don't serve string here." He taps the sign above the bar that reads : We Do Not Serve String. As if his day couldn't GET any WORSE!! String leaves and starts walking toward his house. - WAIT! - He decides "What gives, I've had a terrible day...I deserve a drink at the very least!" He devises a plan: I'll just disguise myself. Content with this decision he frays the ends of him and walks back into the bar.
"Oh barkeep?" he says, "I'd like you to line the bar with shots of whiskey...I've had a bad day."
"No problem" says the bartender. He turns to the bar and begins to prepare the shots. "Heeey....wait a minute. Aren't you that same piece of string who was in here just moments ago ordering the same thing?!"
The string blushes, partly from embarrassment but also out of frustration. The bartender once again taps the sign: We Do Not Serve String.
String leaves again and this time he isn't depressed about being denied - he is ANGRY. Ok, I need a better disguise! He ties himself in a knot and enters the bar for the third time.
"I'd like you to line the bar with shots of whiskey" he asks, "I've had a bad day." The bartender doesn't look amused.
"Are you not that SAME piece of string who has been in here TWICE already trying to order the same thing?!!!!!"
String thinks for a minute...perhaps his disguise wasn't as clever as he thought. He responds calmly: "No, I'm afraid not."
Get it?