First let me state that I am careful about food, its preparation and storage. As far as I know I have never poisoned anyone. That being said, it drives me nuts when people get over anxious about food: throwing out unopened yogurt because it's one day past the sell by date, refrigerating absolutely everything, etc. So I don't refrigerate ketchup, jam, fake maple syrup, fruit and sometimes cheese. What don't you refrigerate?