My take?
If the out and proud sub boy can follow mistress' instructions, he can probably follow the four safety rules better than some fudds I've seen.
I mean shit, I'm in the south. Proud boys have exponentially more potential to be a pain in my ass than subby boys.
Hell, subby boys know how to follow rules and know their actions have consequences. Probably would be one of the more pleasant customers I'd have all day.