You have to hold your breath when you go past a cemetery. Or a school. Or over a bridge. Especially over a bridge, or the car will be too heavy, and the bridge will collapse.
A childhood belief about excursions

others believed things like this
- Whenever I was upstairs on a bus, I didn't believe that it would fit under the bridge so I used to duck. — Dave, Lancashire
- I used to believe that George Washington died and turned into a bridge.— lara dean
- I used to believe that the lower level of the George Washington Bridge in NYC was named Martha Washington— Shayne
- If you hold your breath and make a wish under a highway tunnel it will come true....I still hold my breath :)— aj
- when i was a little kid. i used to think that when u hold ur breath ur heart stops.. LOL :P — Annonymus
- I still hold my breath when I pass by cemetaries because it is impolite to breathe when other people can't.— Crystal