I've mentioned before that my son is a military policeman. He's been at his duty station for just over a year now and just today underwent some training he previously hadn't.
I'm sure that all of us in the army have gone through the "gas tent", a tent filled with CS gas that makes you gag, makes your eyes stream tears and your nose stream snot and your mouth stream spit, and feels like razors as it goes down your throat; you learn quickly that when you hear an alarm of "gas! gas! gas!" that you will want to put your "gas" mask on immediately.
My son went through that in basic training, but as a military policeman he gets to look forward to even more special stuff. Eventually he'll have to get tazed. Today he had to work through getting sprayed directly in the face with pepper spray.
He sent me a couple pictures. He doesn't look happy! Yeah, I can laugh a little, but that's my son in pain. No one likes to see that.
He'll get around to sending me the video!