Well, it will really screw you up.
If you're lucky it will rip off the clothing, next best luck would be to rip off a limb, the worst luck would be that it would suck you into the shaft and completely kill you. PTO shafts are dangerous. I have had folks ask to buy this splitter from me but I don't think I can, trying to be considerate of the next owner, how would I feel if it killed someone's dad?
I do not where gloves when using this splitter and I don't even drink beer. Way too risky.
Dang effective though and you can split any length log so if you wanted to make split rail fence or whatever, you could.