Ten unwritten rules.
1.) NEVER use a urinal when someone is using the urinal next to it (unless there is a wall between them).
2.) Hold the door for the person behind you.
3.) Don't punch children.
4.) Freshmen are babies.
5.) Always carry (some) money.
6.) No team killing.
7.) Shave if your facial hair is patchy (or if you want to).
8.) If your opinion is offensive, keep it to yourself.
9.) If you can't come up with something else for your list, just put ect. At the end.