I've never been edgy or found edgy humour that funny. I've never said kys or been mean to anyone online BUT...
I've had 5 teachers in my lifetime tell me they were worried I was going to be a school shooter or whatever the british equivalent is. It's probably because I was eerily quiet throughout school and college, maybe also because I used to use matches a lot in class.
I've never been called a psycho but I have been called scary and have had my bag searched by teachers a few times for no reason. All they ever took was my matches which I always got back usually by just taking them back at the end of the lesson