Except you're not passing a machete to Jason Voorhees. That would be "double it and pass it to the next person who you know is going to pull the lever."
You're passing a machete to the next person in line. You don't know who that is. They may or may not pass the machete down the line. Considering I would not expect a person chosen at random to kill someone when handed a machete, it seems unethical for me to kill someone with a machete just to prevent handing it to someone else.