One thing I really want to do just to see how many people I can piss off is take various pictures of things that go against the accepted way it should be done and post it online.
Examples: Go the the store and get a Kitkat bar and just take a huge bite out of it without breaking off a piece.
Putting the toilet paper on backwards.
Putting a paper cup full of water on the very corner of a table.
Putting milk in a bowl before putting the cereal in.