I hate riding on crowded elevators, so there is a simple tactic I’ve used to clear it out. As I am about to get on it, I would loudly state, “If anyone has any fast acting Rolaids, you better give them to me now!” I’m grateful that over the years, only a few people have gotten seriously injured when people stampeded out of that shaft. Sometimes to enhance the effect, I’ll enter the elevator eating a plate full of beans while making my initial statement.