Personal Cups
Nobody is more possessive about their belongings than an office worker. Forget about food in the refrigerator because they’ll go to war over their coffee cup. If someone else dares to use it and doesn’t watch it they may face a duel at dawn. Here’s a passive-aggressive note warning people not to touch their colleague’s cups.

The final word is one of the most threatening in history. There’s no need to spell ‘thanks’ in this way except to strike fear into everybody’s hearts. Everybody reading this can sense the tension in this office but this note ramped it up to the next level. Don’t come between an office worker and their cups (via Reddit).