Rule one: No using real names. Examples of bad names: Reggie Styles, Jojo, Donald Trump, Cthulhu R'lyeh.
Rule two: No writing on your drawing. This includes PIO, Writing the name you were given and labeling things.
Rule three: No Lewd. At all. I see one nip and you're out.
Rule four: I can't believe I have to say this but don't be racist.
Rule five: Try and enjoy your stay.