True story. When in high school I worked in a chemical plant making reagents for blood analyzing machines. There was a guy who took care of the vending machines (all controlled by the rackets) and I used to visit with him when he was filling the machines. He stops showing up and the machines go empty. Fast forward a couple of years and going to college in NM and living in a fraternity house. One day I go into the laundry room where the vending machines are located and who but none other is there filling the machines. I say hello and he turns white as a ghost and tells me not to tell anyone I saw him. Couldn't understand why he panicked but finally figured out he was in witness protection.