What bugs you when you are at a grocery store?

I work in a grocery store in the produce department. I have been there for seven years. Over those seven years I have seen many different things. Some unbelievable and others just plain funny. My question to all of you is…what have you seen or had to deal with while either shoping in a store or working for one that bugs the hell out of you the most? Or on the other hand, what has been something that you thought you would never hear or see while at the store?