The work place, usually in positions of authority, where they're free to let their anger run rampant without it being questioned too much.
Thankfully, my dad is pretty good, isn't very controlling, he just can't hold it back sometimes. He knows what he's like in positions of authority, and like some other 8s I've seen, he avoids putting himself there.
The main culprit is my boss, what I've learned is to not show signs of betrayal. I did that once, but now I know better, and she's not quite as rough on me. But I watch her rip into innocent people that try their best to help, she drives them to tears, and I desperately want to step in and defend them, but I feel that I could be wrong. Maybe they did something worthy of getting yelled down.
Going to a person above her would be a reasonable course of action if it escalates. But it would look like betrayal.
I try to reason with her after she destroys people, help her to develop a bit of mercy instead of seeing people as tools to be used and discarded. I don't know if it helps though, she fired 3 people in front of everyone just today, and continually threatens to fire a lot of others. These people are new to the job...
Other 8s do this same shit as well. It drives me insane.