Beware of this door. It will not open for you unless you ask it really, really nicely. Or perhaps if you say mean things about its mother. But I swear ‘open sesame’ doesn’t work, and neither does the Elvish word for ‘friend.’ Oh, and the Handicapped button won’t help you either.

Brute force works, but it takes a while. The door next to it is much easier. If you want a challenge, though…

Fire hazard, perhaps?