I can vouch for that...
...I used to work in a theatre.

It was "Mr.Sand" for a fire and "Mr.Gravel" for a bomb. So you'd hear things like "Mr.Gravel is in the foyer" and so on.

I can also vouch for the fact that, given the £2.60 an hour I was earning, I would be out of there like a shot!!

Cheers,
TLM
(The Love Manatee, Mon 25 Nov 2002, 20:16, archived)