Horror of Horrors!

"I'm a lefty," you admit.
"Excellent!" MagnifiCAT exclaims.
He leads you around to the back of the table. "Stand here and stretch your left arm in front of you."
"Why?" you demand."
MaginifiCAT doesn't answer. But your arm moves into position on its own. Gulp. You don't like this at all.
MagnifiCAT places Will at the side of the table. He instructs Will to hold your arm in position. Will does as he's told. He doesn't look at you.
You can SEE Will's hands squeezing your arm, but you can't FEEL them. Weird.
MaginifiCAT picks up the cleaver. "Ladies and gentlemen," the magician announces. "For the first time on any stage, the most dangerous feat of modern magic...the Hand of Glory!"
Your eyes widen is terror. What's he gonna do?
MaginifiCAT raises the cleaver high over his head. He aims it straight at your wrist!
You...