Photographer Patrick Hall was able to gather and convince a group of 100 people to have their bodies shocked by a stun gun. As the people react to the jolt of electricity, he photographs their reactions. To make things more dramatic, the video is played in slow motion, so you get to see every movement of their body and face.
You can also check out an extended version of the video that shows the faces of the people holding the stun gun. Some of them look excited to shock their friends with a stun gun.
If you're interested in seeing the finished photos he made for this project, you can check out the series on his personal website.