Hip, hip, hooray! It's your birthday! You run screaming down the stairs, into your parents' bedroom. Hmm, nobody there...No matter! You continue running down the stairs, into the kitchen.
Ah, there's your Mum! She's sitting at the table reading a newspaper. Your Dad is preparing your breakfast. A weird family, you think. Whenever it's someone's birthday, your family traditionally swaps roles.
Your Mum looks up. She takes off the reading glasses she doesn't need. 'Hello, honey. Your father will make your breakfast. By the way, happy birthday!'