When my aunt was in college she took a night lab class that would let out late. One night she was walking back to her car and someone came up behind her, pressed what something into her back, and told her to keep walking. Suddenly a man coming toward her who she had never met before looked at her, threw open his arms for a hug, and said, "how are you? I haven't seen you in so long!" He then whispered, "play along. He has a gun." My aunt immediately played along, hugging back and acting excited to see this stranger. The guy who was behind my aunt quickly backed off and walked away. The hero took my aunt to the nearest emergency alert post, pushed the button for her, and told her to stay put while he went to get help. He never returned.