If you spend a lot of time interacting with other people, you may find yourself becoming frustrated by the fact that so many people seem to have forgotten a lot of the most common etiquette rules.
I know that when I worked at a coffee shop, I was astounded by how many customers completely neglected to say "please" or "thank you" when making their order. Do we all need to go back to preschool?
A recent AskReddit thread gave people the chance to share their own examples of rules that everyone should know but which some people neglect to follow. Reading through them might make you feel totally validated...or it might clue you into problematic behavior of your own that you didn't realize was wrong.
When you're done reading, don't forget to share your own examples of forgotten etiquette in the comment section!