Strue story. I've been hit with 80k off of an electrostatic painting robot. Since that I don't really feel anything below ~150v. 120ac is a fun tingle up and down the arm.Just for reference - stun guns don't work on everyone so don't rely on it if you are in a situation and you deploy it. I can speak from personal experience.
The guys at threat dynamics hit me hard enough to leave burn marks. I went down on a knee but still made the shot in their simulator. That was a fun day! I need to go back!