with water at the sun, will this stop the sun from attacking us?
Smoke detectors are alarms, so you can get out or turn off the stove. Fire sprinklers have a thermal plug, that melts at fire temperatures.
No, speed bumps are a joke. Everybody just speeds up between them, then slows down to go over them. The don't control speed, your either going fast between them, or crawling over them.
did you try wiggling the wheel back and forth on that one to release it in case its in a bind ,if that doesn't work then try a different key ,sometimes one certain key that gets used a lot will do this,if that doesn't work you may have to replace the lock and key part of all this,good luck.