We used to use Magnesium safety blocks in presses when work had to be done on the dies while in the press. Any time a set of blocks had to modified some idiot always had to collect the swarf from the saw. Although some of the guys did save it for using as firestarters for hunting trips out west
The optimist says the glass is half full, the pessimist says it's half empty. The paranoid in me says somebody put a hole in it.
Remember pessimists are at heart opptomists. They know things can and will get worse.