The building does not move. Your I.Q. drops by 10 points. You no longer grok spam. You are in a North-South hallway. There is a door to the East.
Exit is to the West.
The students, who had apparently been taking an exam, look up at you angrily. The professor glares at you angrily. The students return to their frantic efforts. The professor, who looks vaguely familiar, continues to glare. You suddenly realize that this is your calculus class, which you have not attended in three weeks.