Re: Mast climbing
"I suppose it's about time someone noted the potential risk of "
No no, that's totally OT, belongs in the Liability Forum not here in sailing.
As to being gristly, that's one of the dangers of sailing, and one of the dangers of ski tows and lifts as well. The medics call it "traumatic amputation" when a loop of line, or your scarf, gets wrapped around a wrist, a finger, a foot, a neck (yes, neck) and POP! the two sides get separated.
Which is one reason why sailors have traditionally carried sharp knives, because if you're lucky, you've got a couple of short seconds to cut the line, before the amputation happens.
Solo trips aloft? Yeah, well, if you want to go aloft safely, you pay a rigger to do it instead. If some ape has your car keys and has gone up the mast, you go up after 'em solo. Unless you've got a wooden mast, in which case you can just build a fire and burn 'em out.
Oh wait, wrong forum. :-)