A remark in the Heinous Processed Foods thread reminded me of this. One of my biggest pet peeves is a bagger at the grocery store who places the bread in the bag first, then the tomatoes, and them drops a 10 lb bag of potatoes on top. A store where I used to live had a bagger who did this. I asked for my ruined items to be replaced. What's the most heinous grocery bagging violation you've witnessed?