Sounds similar to the US about 15 years ago. Though we do have similar “false alarm” stampedes here even today. I walked into a mall about 15 minutes after one happened once. Turned out a table had gotten knocked over in the food court and the glass broke and all it took was a couple people yelling “gun!” and running and then the whole mall panicked. I mean, can’t really blame most people: if I saw 100 people running away from something I’d join them and run away too 😅