I got asked on a date by a guy who I had known in passing and hung out with an old group of friends I used to run with. He was nice and charming and I couldn't imagine several of my female friends hanging out with him and him ending up being a bad guy so I said yes.

The entire date, despite him paying and asking me more about myself and being rather gentlemanly, something about him made my stomach knot up and gave me a weird feeling. Not like serial killer vibes, but something about him made him come across as almost predatory. Just how he looked at me, maybe.

So I went home, declined a second date because I was going back to college in a month anyway and wasn't looking to date someone I wouldn't see for months at a time anyway.

About a year later he was arrested (and later sent to prison) for participating in the gang rape of a girl who passed out after drinking and smoking too much.

I may or may not have dodged a bullet because there's no way to say something similar would have befell me but you never know.