A 7 year old and a 4 year old are upstairs in their bedroom. "You know what?", says the 7 year old, "I think it's about time we started swearing".
The 4 year old nods his head in approval.
"When we go downstairs for breakfast I'm gonna swear first, then you swear after me, ok?"
"Ok" the 4 year old agrees with enthusiasm.
The mother walks into the kitchen and asks the 7 year old what he wants for breakfast.
"Oh, shit mum, I guess I'll have some Coco Pops "
WHACK!! He flew out of his chair, tumbled across the kitchen floor, got up, and ran upstairs crying his eyes out.
She looked at the 4 year old and asked with a stern voice, "And what do you want for breakfast, young man?
"I don't know," he blubbers, "but it won't be the f**king Coco Pops"