I am proud of you - that you do not play victim from the start and rather show your conviction to defend yourself. 

I know what are you experiencing. I do sometimes thise routines as well even as a man. It happens that I also bumb into some strange guys and I also let them know with my body language that I am willing to chew their balls off if need be. It just works. 

I wonder what will happen that one time when it will fail.