http://www.getannoyed.com/
It describes certain ways to annoy people just for nuthin... so when you're bored, take a look.

Ways to Annoy a Yankee (Northerner)
Tell them you don't have an accent, they do.
How To Annoy Your Driver
Always tell the driver to slow down or speed up.
How to Annoy (Get Rid Of) A Blind Date
Hold a debate. Take both sides.