While visiting San Francisco years ago, I passed a man on Market Street with the most terrifyingly crazy eyes I’ve ever seen.
He was holding a 6 pack of beer.
One should never, ever make eye contact. They consider that threatening.
He proceeded to follow me, hurling full cans of beer at me.
I broke into a run. He chased me into a bookstore, yanking books off the shelves & throwing them around.
Two store clerks chased him out & locked the door, with me safe inside, until he wandered off.
They told me this was a regular occurance & cops couldn’t do anything.
They said the guy sometimes brandished a knife, but the cops never caught him doing that. So, supposedly he wasn’t a danger to anybody & couldn’t be locked up.