I think we'd all agree wearing a gas mask, wet suit, and galoshes is no way to go through life, so he didn't:

A security guard accidentally suffocated himself in an autoerotic accident, an inquest heard.

Ralph Santiago, 31, was found dead in the men’s toilets of the building he worked wearing Wellington boots, a wetsuit and gas mask.

I always knew security guards usually had really dull jobs. I just didn't understand the lengths some of them would go to for entertainment.