Once. Worked in an internet caf in a rural village when I was 18 or 19...
Two boys of about 14 kept verbally abusing & threatening me, incessantly, over the course of a week, so on the fourth day of this I finally told them firmly to knock it off or I'd tell the manager. They didn't, and I did, but he fired me for not being willing to put up with it (he wasn't much older than I was, and in retrospect I found out one of the boys was something like a nephew of his).
Given that I had (still have) PTSD & wasn't far from a nervous breakdown, I think I was better off getting out. That was something like 13-14 years ago.
The caf didn't last very long after that, in fact, partly because most of the adults who might have used it weren't happy with his allowing those teen relatives of his (yes, there were several, but my run-in was only with one) to run riot the way they did & mouth off at people and lie to him about it. He was so ignorant he always believed his family no matter what, so.
The other main part of its failure was that it was in a village, so most of the people who wanted internet access either already had it at home or were willing to go to the library in the nearest town (the town being where many of the residents worked, as there wasn't & still isn't a lot of available employment in a village of 5,000 people). The main reason I started going there was that I had to share the PC at home with my family, and I kept going because the espresso etc machine they had made lovely hot chocolate (I learned to use it, of course, which was when the guy hired me, as it'd been just him doing everything up to then.)
I don't miss it!
