I didn't do this nor would I ever. Common sense, my dentist and you guys have taught me better.Source
"Mark this one under potential Darwin Award candidate -
So I have/had this bad habit of stripping wire with my teeth (this is known as foreshadowing). Speaker wire stripping is what I had always used them for. But when I finished my basement (bar area/bathroom/spare bedroom) and my sub-basement (theater room), I got in this habit of pulling the jacket off the wire with my teeth no matter what the situation was.
At one point in the project, I had been running up and down between the bar area and the theater room, shutting breakers off, turning them back on. Well, I ran back down in the theater room, all the lights were off, and the work lights were on. So I get up on the ladder to continue wiring the can lights in the ceiling. I cut the jacket off some dangling wire and grab the jacket with my teeth and pull.
About 2 seconds later I'm off the ladder, laying on the ground, a little bewildered. Yup, I striped (sic) a 20-amp 12-gauge live wire with my teeth and had my butt handed to me for my efforts. I had made the mistake of thinking the breaker was still off for the lights in the theater room because the bar area was also dark (the lights were on the same circuit). Turns out I had simply shut the lights off in the bar area and, after being distracted by something else for a moment, had forgotten this minorly important detail. Dark rooms meant the electricity was off, right? Not so much.
No permanent injuries that I know of (my wife might argue some cognitive function was impaired), and the resulting theater was totally worth it."