You'd be hard pressed to find any, other than anecdata.
Yesterday, a small woman was assaulted (just pushed hard, luckily she did not fall) in front of me by a woman who was clearly off kilter (rambling to herself, shouting periodically to noone, etc.).
One day, a similarly off-balance gentleman started hurling obscenities at me and threatened to punch me. He was a foot away from me, and I was on the MUNI train, so nowhere to go. I stared him down as his spittle flew in my direction, and he walked away. Coincidentally(?) I came down with the worst throat infection a few days later.
And then another time a guy who had severely bad hygiene problems got on the N train, which was already crowded.... and then the train goes into the tunnel before Inner Sunset. I have never felt so nauseated in my life. As soon as the train got out of the tunnel, half the carriage emptied, with people gasping for air.
And then one time a mentally ill person (from appearance) got on the bus, stood behind a young woman and started slowly humping her. I would have done something, but he was huge.
And then there was this time a mentally ill guy was walking down the sidewalk, totally in his own world... but the asshole grabbed my crotch as I walked by.
In contrast, I have never seen such a thing being done by a non-mentally-ill person.
Careful. Last time I did this, I got downvoted and detached to hell.
I actually really want to know what the statistics are. If it's "mostly" mentally ill people maybe deal with that problem first, if mentally ill is the corner case (a loud one), then maybe not.
Yesterday, a small woman was assaulted (just pushed hard, luckily she did not fall) in front of me by a woman who was clearly off kilter (rambling to herself, shouting periodically to noone, etc.).
One day, a similarly off-balance gentleman started hurling obscenities at me and threatened to punch me. He was a foot away from me, and I was on the MUNI train, so nowhere to go. I stared him down as his spittle flew in my direction, and he walked away. Coincidentally(?) I came down with the worst throat infection a few days later.
And then another time a guy who had severely bad hygiene problems got on the N train, which was already crowded.... and then the train goes into the tunnel before Inner Sunset. I have never felt so nauseated in my life. As soon as the train got out of the tunnel, half the carriage emptied, with people gasping for air.
And then one time a mentally ill person (from appearance) got on the bus, stood behind a young woman and started slowly humping her. I would have done something, but he was huge.
And then there was this time a mentally ill guy was walking down the sidewalk, totally in his own world... but the asshole grabbed my crotch as I walked by.
In contrast, I have never seen such a thing being done by a non-mentally-ill person.
Make up your own mind.