Once there was a String. He was just a regular joe sort of String, working a 9-to-5 job he really didn't like, had an apartment, all that. One day he had just a really rotten day at work and as he was walking home he passed by a bar and figured he'd just stop in and have a beer, take the edge off.
So he goes in and sits down at the bar and the bartender walks up to him kinda sly... The String says, "Bartender, gimme a beer." The bartender eyes him up and down and asks, "Fella, you ain't some kinda string, are you?" And the String says, "Well, yes I am, obviously." The bartender waves a hand, dismissing him and says, "Get outta here, we don't serve your type in this bar!"
The string is kind of put out by the bartender's rudeness, but decides that since he's already had a long hard day he might as well just go home.
A couple weeks go by and the String has another really awful day at work and as he walks by the bar on his way home he decides he'll try again, 'cause a cold beer sounds like just the thing he needs after a long day.
He goes in just like before and sits down at the bar. Of course, it's the same bartender, who takes one look at the String and recognizes him immediately. He says, "Hey buddy, I thought I told you before! We don't serve Strings in here! Get out and don't come back!"
The String is super pissed. Already having a bad day and now suffering the indignity of being thrown out of the bar by some string-hating bartender, he's just seething.
After work the next day the string goes home and comes up with a plan to disguise himself and go back to the bar, just to pull one over on the hateful bartender. Looking at himself in the mirror the string wiggles and contorts his long, stringy body into a wad, then he ruffles up his normally sleek hair into a fuzzy mess. He looks totally unlike himself! Unrecognizable, even! "This is perfect!"
He goes straight down the street to the bar and is glad to see the same bartender working. He sits down and orders his beer. The bartender brings him his drink and as the String takes his first sip, the bartender is staring at him and asks, "Say, you look familiar. You ain't that string that's been coming in here lately, are you?"
And the String says, "No! I'm a frayed knot."