You've been followed by a stalker all week. You still haven't gone to the police because he was completely clumsy and gave himself away every time. A couple of times you saw him reading an upside-down book on a bench next to you, three days ago he was kicked out of the place where you were, and yesterday, as soon as you looked at him, he hit his forehead on a pole when he tried to escape.

You weren't worried about his presence next to you. But one day you got stuck with him in the elevator.