I'm curious what sort of cautionary tales everyone has come across (or experienced themselves).
For instance, my dad used to work on live wires all the time - until he was putting a stove in (220v if you don't know) and touched two wires together. The spark flew off and hit his glasses and melted about halfway through the lens. He still works on live 110v, but he always turns off the 220 circuit now.
What about you? Any (hopefully just-as-happy) shocking experiences you folks have had?