(Australian spacific)
When we where young my father told my younger brother that he would not be allowed to go to the football (aussie rules) unless he could eat a Meat Pie with his hands without spilling any or becoming messy. (this can be quite difficult with the cheap pies that you get at the footy. He was told this to encourage better eating habbits/skills, You are not Australian unless you can do this :-)
Years later we went to see Gelong play, My brother stoped at the turn table where the ticket man stood. He wouldn't move,
My father said "Come on, other people want to get through",
"But he hasn't asked me the question yet." James replied,
Dad looked baffled, "What Question?"
"About the Pie,"
"Huh? what pie!?, come on, your holding up the queue"
"If can eat it without a knife and fork"
"Huh?, Oh... That's not really true, come on, your allowed in," said my father, then similing at the Ticket guy,
A childhood belief about sport

others believed things like this
- Until i was about 6, i used to believe that when the police gave you a ticket, it was a ticket to the movies!— mari
- My older brother once told me that Aussie shampoo was made from kangaroo pee. I avoided using it for years!— Annie
- My mum told my older brother that dogs weren't allowed in London.— Fiz
- When I was six my sister told me Meat Pies were made from mashed up rats...to this day I can't eat a Meat Pie.— Jamie
- one of my friend's was told by his father that if you didn't turn mirrors over the reflection would run out.— pri
- I asked my father what holy water was. He told me it was the priest's bathwater. — Gwen