A childhood belief about monsters

When I was a young police officer, children would often ask me about my adventures. I would take out a special clip of bullets that I painted silver and told them it was for werewolves. I had this story about how I had shot and injured a werewolf who was later captured and was kept under lock and key at a dog kennel. The story was so convincing. They hung on my every word. I am retired now, but I wonder how long that story was believed.