Don't worry, the combination is written on it.
Crack security at its best.
From Vent, Enter, Search, a blog for firefighters about hazards and unusual situations encountered on the job. Much of what's documented is epic kludge that may also put firefighters in danger when trying to enter or exit a building.
It's important to keep your swag locked up nice and tight.
It took him a while for him to understand why all the kids were laughing at him on his first day of engineering class. ~Not-So-Handy Andy