Imagine you and your friends are out at a bar on a Friday night. When you came in you noticed a woman at the bar sitting alone. Later in the evening, you notice her again, now sitting with a man who keeps moving closer to her and buying her drinks. She looks uncomfortable and keeps moving her chair farther back while looking around the bar. A bit later you notice that she stands up and tries to walk away. He follows her and puts his arm on the wall to talk to her further. It looks like she’s cornered. What do you do?