Re: Pinching fingers in mic stands...
I had a classical musician friend on stage for a casual gig I was providing for. He was getting antsy and kept trying to "help" by setting and adjusting the mic stands for the other musicians and, finally, his own stand. I kept trying to get him to leave well enough alone and let me do my job (which at that time was running the drop-snakes) and I'd get to setting up the band when it was the proper time. So.....
He proceeds to pinch the skin between his thumb and index finger in the mic stand. He can't stand physical pain and went berserk, calling me every name in the book and informing everyone within earshot (at that point about a city block..) that, "Your mic stand sliced my finger off!!!!!". The rest of the musicians vacated the stage while he continued to rant. I had told him repeatedly to leave it to me and I'd take care of everything, but he didn't seem to get it that assuming the duty meant assuming the risk.
I think it was about 6 months before he spoke to me again.