Yes Sir!

It is recommended that any food leftovers during lunchtime in the office should be disposed of properly. But some people fail to do that, and the unattended food starts rotting, creating inconvenience to everyone. This passive-aggressive worker wanted to teach everyone how to treat the food after you are finished.

Instead of listening to him and saying sorry for annoying him, a jolly colleague of his replied to him by writing with ketchup. We can imagine that the aroma of the dried ketchup stayed for a long to annoy others. But we can not figure out ketchup aversion as 97% of houses in the United States use ketchup.