I already know the answer. Of course you do.
Photographer Patrick Hall figured people being tased would make for some strong images and he was right. He posted the photo series on a photography website. They're worth a look.
But in addition to the images, Hall also recorded his subjects being tased with a high-speed camera, effectively allowing us to watch them react in slow-motion.
This video may have some of the best reactions I've ever seen. Clearly, the people being stunned are in pain. I'm not talking about them.
I'm talking about the people doing the tasing. Their faces are absolutely hysterical. Plan on watching this one a couple of times to get the full effect.