Several years ago a company I worked for had a catering company come in and serve everyone lunch as a thank you. It was a nice gesture from a company that underpaid everyone and expected us to put the company ahead of our personal lives. I was a department manager and as a result had to take care of a few things before I could go outside to join everyone else. By the time I got there a lot of the food was gone, including the macaroni and potato salad. I remember looking at the now mostly empty trays thinking to myself "I've never seen those types of food give off a yellow hue". This was on a Friday afternoon. When I came to work on Monday the place was dead. I was usually one of the first ones there and had the ability to let myself in. Turns out that a lot of my fellow coworkers were a few miles away in the hospital with severe food poisoning. I worked alone in a huge building for half an hour before I started making phone calls to see what the fuck was going on. Only one other person showed up and I told her to take the day off.