Back in the old days of line printers and such, I was the computer operation supervisor on a banking system that had a
printer page separator or burster as it was known, the damn thing had stopped on me and I started looking inside as to why.
Like any idiot I stuck my hand in there to get a tiny piece of paper out and get it going again.
I didn't unplug the beast before I did that and it started by itself and munched my left hand.
Took off the end of middle finger and broke the ends of the rest. What fun. Not
Now I have a somewhat screwed up middle finger but all in all I got lucky.