Middle of the night. Tom, bill, georg, and gustav managed to fall asleep but you are the only one sitting in your bed staring blankly at the ceiling. You have a million thoughts in your head and none of them is to fall asleep.

You get out of bed and walk around the room for a while. This way and that way. In circles, back and forth. As long as you don't go to sleep. Suddenly an idea pops into your head. Since you can't fall asleep, he won't be able to either.