Tez, the only reason I said what I did is because I know some people are completely twitchy about in close...even if they know the techniques they panic and as I sometimes say "vapor lock" when it comes to physical techniques
Again though, I said that if you are young, female and not strong having a larger, stronger male on top of you who is trying to be intimate is horrendous, especially in this case where it was someone known to the girl, you don't carry weapons and have them ready to use against those you consider friends. Wrist locks won't work in that situation either, it needs specific techniques to get a bigger man off you, I believe BJJ provides those specific moves, wrist locks, throws, etc etc will not do that.