Here I was enjoying an ice tea from McDonalds and when I finally take the last sip, I get something crunchy. Thinking at first it might be ice until I came to realize that it wasn't melting. I take a look at it and lo and behold it's not ice but a little piece of glass. McDonalds just lost a customer for a while.

So on to the question. What are some of the most unpleasant surprises you found while eating and or drinking, whether from a fast food restaurant or a regular restaurant?