OK here's my 2 cents worth.
Back many years ago when I first started as a technician
at a defense contractor I was on evening shift (3:30 to 12:00). A couple nights after
starting there I was offered a tour of the machine shop area. After being led through
the lathes, milling machines and other work stations, we went to the iriditing and painting
area. The sandblasting box was pointed out to me and I was encouraged to look into it
through the glass plate in the top. As I bent over to look, suddenly arms were thrust
out of the box through the rubber gloves that were attached and grabbed me. Liked to
scare the crap out of me!!!
From that day on, I delighted in being onhand for
the next new guy being generously offered the same tour. It was always the highlight,
and it always worked!