Three guys are celebrating in a bar.
They keep high-fiving each other and yelling, "136 days!" "136 days!"
They are so excited, the bartender can't stand it any longer.
"Hey," he says, "what are you guys celebrating?"
"We finished a jigsaw puzzle!" says one of them.
"You finished a jigsaw puzzle???" says the bartender. "How come that's so exciting?"
"Well, it said on the box 'Four to six years'!"