Told you so?

If you are the passenger in a car and the driver asks if he is going to hit a pole when you say yes he will be stubborn and keep going forward anyways. He'll hit the car and the gangster guy walking past is going to bust up laughing.

Wearing your hair down, walking in lots of wind, and being able to see where you are walking. Not all three of these things can happen at once. 

Don't walk underneath the overhang of a building. Somehow an icy cold drop will land just right so it goes down your back even though you are wearing a sweatshirt.

Don't peel your hard boiled egg over a trash can with nastiness in it. Right when you finish peeling it will slip out of your hands.