Okay, there's this string that walks into a bar and says "Barkeep, Gimme a beer."
The bartender says, "We DON'T serve strings in here."
So, the string sits there and then, "AHEM, barkeep, GIMME A BEER!!."
The bartender repeats himself again very loudly and throws the string out of the bar.
So, all ticked off the string picks himself up and see's a big truck coming down the road and throws himself in front of it. Man, he's getting tossed around, frayed, twisted, knotted up, and just plain frazzled by this truck when it hits him.
He finally gets himself loose from the truck after all of this and dust's himself off and walks back towards the bar. He again walks in and jumps up on the stool and says "Barkeep, Gimme a Beer!"
The bartender walks over and says, "Aren't you the string I just threw out of here?" in an upset voice.
And the string replies, "No, I'm afraid not"