I haven't made it to any lately, but I used to show up at science-fiction conventions a couple of times a year.
On several occasions I was, by the standard emerging nowadays, sexually assaulted!
As in, hugged without having been asked for explicit permission in advance. Like, it was spontaneous. (Is that a thing anymore?)
The perpetrators of this appalling behavior were often attractive young women*, who obviously believed they could get away with it.
I fact, I can recall only one time I was actually asked for permission for a hug, and that was weird. (I was hanging out with some women. A guy asked my permission for a hug. It was obvious enough that he was asking my permission to hug one of the women, but that made no sense. It didn't make sense to her, either; she figured if he's asking Eric's permission for a hug, he must want to hug Eric, and shamed him into following through on it.)
Clearly, if this can happen to me, it must be an epidemic. We need the Feral Government to protect us all!
* Though in one case the hugger was a middle-aged man who used to be a woman and hadn't quite got the hang of male behavior yet.