I remember when I first joined here I had three(!) users randomly message me asking what my gender was...that was a little uncomfortable. I mean, not being asked the question itself, but more being asked by people I'd never spoken to prior to that, when I'd just joined, as the first thing they said to me. I am strongly reminded of the "Hey, Age/Sex/Location? :)" bots I used to encounter on MSN back in the day. Same energy.
Offline...well, when I was in my second year at University I had early evening classes and there was a narrow alley that I had to pass through to get to where I needed to go. One time I went down there on my own and was ambushed by a guy who was probably in his late thirties or so. He got VERY close and said "My cock, your mouth" when he was right in my face. I just said "No thanks" and practically ran out the alley and onto the main street...he followed me out of the alley and lurked behind me whilst I waited to cross the road. Thankfully there were other people around at this point, but I don't think I've ever been more disturbed or scared in my life >.>