Yes, although for a good reason.

I ate at a fairly well-known cafe where I live, and had a sandwich and side salad. I finished the salad, and near the end I felt a weird crunch in my mouth. Suddenly I could taste blood near my gums, and when I looked at what was left of the salad I could see broken glass.

Obviously, I was a little panicked, and my wife quickly called someone over to say that there was glass in my food. One person stayed with me while the manager went to the back, and found out that one of the chefs had broken a glass on the table, but had just washed the salad clean rather than throwing it. By this point I was really embarrassed because around 30 people were staring to see what was happening, given that I had blood coming out of my mouth

I said that this was probably in other people's food, so they should probably tell others, but instead of responding they handed me cash to cover our meal, apologised, and walked away. I shouted at them to say that they shouldn't ignore it because others were eating the same salad. My wife chimed in and told everyone that we had found glass in the salad and that they shouldn't eat it.

I've never gone back, but a few years later I had told someone that story and they said that they'd heard a rumour about it from locals, so it seems that people remembered that story and stayed away.