I once scared a guy so much, he fled in the middle of us fucking, threatened to call the cops on me if I ever came near him again, blocked me from his internet accounts, and told all his friends not to associate with me. Not that any of them listened...
In all honesty, it really confused me. I couldn't see what the big deal was. Unlike the stories shared thus far, he and I were not role playing. There were no knives, ropes, cuffs, or gags.
I'll leave it to your imaginations as to why he ended up feeling like his life was in danger...
:)