In my filing cabinets in a faraway place....
.....there were thermite grenades. Had we ever had to evacuate the trick was to slam all the drawers shut and pull the red T-handle and run away. Thankfully we never had to do it.
And if you think that having to account for missing crypto is a PITA, try finding it two months later, exactly where it SHOULD have been (after five fingertip searches). Don't ask me how I know.
The Ancient Mariner