I'm against screaming. But doing someone once or twice in year, is not the same as doing something everyday. There's no mention, at all, about how frequent his outbursts / yelling / screaming was. This is precisely the issue.
Amen. Literally the only time I can think it might be a reasonable thing is to scream ‘watch out’ or the equivalent in a noisy environment at someone about to get run over or hit by something. And then it should kick off an investigation as to why that was necessary, because it shouldn’t be.
That said, I’ve definitely seen people say someone was screaming at them when nothing of the sort even remotely happened. So your mileage may vary.
I think people need to read up on psychopaths and sociopaths. Realize it’s a spectrum but this behavior is the basis of cults. People here would be good to educate themselves.
