Tingly Sensation?

I found this Tingler Ring dispenser in the bathroom of a convenience store. I typically avoid these places at all costs but found myself at, uh, capacity on the road back home from my hometown. I needed a release, but don't worry, I squatted.
I can't imagine ever buying one of these things. Who do they make these things for anyway? I mean, it looks ridiculously painful and something that you would put around the neck of a rabid pit. If you're a masochistic freak this is for you. I mean, don't get me wrong, I have somewhat of a high pain tolerance...but that? Not going there! I think I'll spend my hard-earned 75¢ on a candy bar, thanks.