@captdave77 made that mistake with his hoyt crossbow. He was hurting but luckily no loss of appendage. Don't drink and play with firearms or crossbows.Actually the general consensus is that they are arrows. A true Bolt is a whole different animal used on the old style crossbows.
But let's not start an argument akin to to the "clip" vs "magazine" rants.
And back to the original "this scares me" statement, the thing that scares me is someone getting their thumb or fingers in the patch of the string when it fires... That scares me more than a limb cracking.