Eat a hot-dog with maple syrup. Tell the nearest person it's good. See there reaction.
Write 'I don't like you' On 12 pieces of paper, then hand it to 1 person, when you hand it to them, automatically... RUN!
Walk around in public holding a sign sideways that says if you turn your head I win.
In public, take a bite of fruit, make weird noises, jump around like a hungry monster for at least 10 seconds, and pretend nothing happened.
When teacher calls on you say I'm not here right now please leave a message after the beep (beep).
Go to a public Supermarket and yell at a bag of potatoes "YOU RUINED MY LIFE!".
Have a better idea for this list? Send it on in!