Things that you should never do: 100% based on reality(but most of them happened to others)

Never talk about how a young kid won't live past X age in front of them.

Never write 5 page letters about how someone is too fat, and how they should go on a diet if they want dates, and then send them a fucking diet book.

Never suggest someone has a learning disability if they are having difficulty in your class.

Never accuse people of not doing their work just because they finished extra fast. CHECK!