There's an electric fence where I volunteer to keep animals out, and apparently it's quite painful if you accidentally touch it, but not lethal. I constantly have to fight my curiosity to know just how painful it is, so I don't blame them.
I worked at a dog kennel and they had small wires on top of the fences to dissuade them from going over. Obviously, it had to be tested. It was like a 9volt battery to the body. It guess one could describe it as painful but I found it more weird than anything. 7/10 did it several times.
Interestingly, the people who owned the kennel also raised horses. That fence I touched on accident and it absolutely sucked. Parts of me were also numb for almost a minute. 1/10 do not recommend
When I was growing up, my oh so loving mother decided I wasn't allowed to be in the house alone and she would only pay for child care for my brother.
I got very used to sitting outside the back door starving for 4 hours after school waiting for her to get home.
15 minutes is nothing. I'd probably only just get started on a good daydream by then.
And, yes, I'm no-contact with my mother.
If this is the study I'm thinking of, one particular guy just kept shocking himself nearly a hundred times. Some people are just built different