Okay, here's how you play:
The 1st poster would start off by just...posting.
Than, the poster after that would pretend to ban them and give a reason why.
So it would be like this:
1st poster: HEEEEEEEEEEEEEY
2nd poster: You're banned for being Obnoxious
3rd poster: You're banned for posting second
Get it then you just keep at it.