Sounds like a dry run to me.
As for CS it was a point NOT to run for the door when some masked up sadist set to work in the chamber,
If you ignore the nasal, eye irritation (because it isn't going away) and dont rub anything you can withstand a lot of the stuff, I know of one sadist who was shall we say was surprised to be offered out by not one, not two but three of No1 SofTT graduate misfits who all had their masks off and had had enough if his little games.....