.... ( i once did a bit of impromptu arc-welding once while testing a wire with a multitester)....
Reminds me of one time when I was replacing ballasts in fluorescent lights at my church.
I was in high school at the time. Myself and another guy were working on the fluorescents. Of course we were working hot. Too much of a bother to walk 10 feet and flip the light switch off. :)
Working with an automatic wire stripper. For those that might not be familiar with those, they look like a pair of pliers, but they've got a mechanism that strips the insulation off the last 1/2 inch of wire. So I start working on my 5th or 6th ballast. I've stripped the neutral, and reach up to strip the hot. Unbeknownst to me, the neutral wire had snuck over and was resting against the handle of the wire stripper. Squeeze the handles, and *BANG*! I'm flat on my back on the table I'd been standing on to work on, and the guy I'm working with is freaking out because he thinks I got zapped hard and had a heart attack or something.
The other time was when I was working with an electrician getting ready to rewire an office. One of the things we had to do is re-route some conduit. So I'm getting ready to saw through this one conduit. And I stop. Look at the guy I'm working with. Ask him (for the third time), "Now you're *sure* that the breaker is off, right Frank?"
"Oh yeah, it's off. I checked the whole panel. They're all off."
Start sawing through the conduit with this little hacksaw. Get about three quarters of the way through it, and that oh familar *BANG*!
Pull the hacksaw out of the conduit, and there's a chunk missing out of the blade.
"Breaker's off, huh Frank? Checked the whole panel, huh Frank?" *grumblegrumblegrumblegrumble*
"Whoops. Guess I must have missed one."
Jerk.