Much of this is because people are stupid and lawyers are asked how to protect companies. The one I love is on rotary lawn mowers, or at least mine, there is notice to not pick up the mover with your finger underneath while it is running. Apparently some guy decided it would be great to trim his hedges with a lawn mover and cut off all of his fingers.
My father used to repair electronics, this entailed checking out the set while it was on. I can remember several times when he ended up on the floor. Usually, however, the voltages were not too high. Big old output tubes with 1600 volts on them were probably not survivable.
My father used to repair electronics, this entailed checking out the set while it was on. I can remember several times when he ended up on the floor. Usually, however, the voltages were not too high. Big old output tubes with 1600 volts on them were probably not survivable.