So, I locked myself out of my room just before the alarm set itself. Not out of the building, just into the hallway. And the alarm is motion sensored. So I dashed around trying to turn off the alarm before I set it off. I called my parents, but they didn't answer the phone the first several times. So when they did call me back I was sitting in the hallway trying to alternatly pick a lock and break the door down. Neither was succesful. Finally Dad remembered a set of keys in the store. Maybe one of those keys would work. What do you know? One did.