I actually had someone try to sell me a watch on the street on ray in Italy. This was in the mid 80’s. It was just like you imagine. He opened up his coat and had a bunch if watches. He took one out hat looked fancy and had diamonds all over it. I kept saying no and he kept persisting. At one point, he said “They are real diamonds.” Then he walked over to the nearest parked car and scratched the window glass with it. I couldn’t believe it. I got away from him as fast as I could, hoping the police hadn’t seen what was going on.