I know it doesn't work like that, but I always like to try. Sometimes - just sometimes - the Rule of Funny wins out.
Okay, so, something stupid that isn't a monster.... Free Actions always make me wonder. Sometimes they're arbitrarily more complicated than swinging a sword, which none-the-less takes a full round, and the game can go straight to hell if it gets abused.
Sometimes, some games get everything they deserve when someone works out the Peasant Railgun.