I don’t know about getting tased, but getting tear gassed in the gas chamber is a standard part of basic training.
https://www.military.com/join-armed-forces/gas-chamber-surviving-basic-training.html
When I was in we had to requalify every year. You can actually build up a tolerance so its not that bad.
It’s not just Myrtle Beach. Those are in beach shops all over the gulf coast too.