Women have done that to me. While I am not going to rape them, I can see how someone who was going to rape might just knock the phone away and pull that person into a corner then walk away before the police could be called but to where? Better to take a photo? But, really now is the state of the event. You are alone. And even if we recognize that it is the perpetrator’s fault for an attack, what do you do with someone who lacks human empathy? This is not someone you can change, defend from, and they are usually ready. The plans were long in motion, whether logistical or nurtured or nature. That’s how deterrence should be addressed, before people become unfeeling, damaged, rotten. After-the-fact is too late.