#20: Don’t Be So Antsy
This sign isn’t really accusing the person who left the doughnuts at the tech office but letting them know that this would be the right way to go if they wish to get ants in the office. Obviously, this passive-aggressive message is meant to say, in nicer words, “Don’t leave doughnuts in the office!”

Since, well, why would anyone want to have ants around the office? This is a good message because it doesn’t just say, ” Don’t leave doughnuts,” but mentions what will happen if they do.