An orchestra is playing Beethoven's Ninth Symphony. There is a passage in the middle when, for about 20 minutes, the bass violinists have nothing to do. So they decided to slip out to the bar next door and quaff a few beers. After a while one says, "Hey, we better get going."
But another says, "No, wait. I tied several pages of the conductor's sheet music together, so we'll have a couple of extra minutes while he sorts it out."
So they stay for another round. Finally, they stagger back to their places in the orchestra and . . .
It's the bottom of the ninth, the score is tied, and the bassists are loaded.