A 6-year-old says to his 4-year-old brother "You know what? I think it's about time we start cussing. When we go downstairs for breakfast, I'm going to say hell and you say arse".
"Okay!" said the 4-year-old with enthusiasm.
Their mother walks into the kitchen and asks the 6-year-old what he wants for breakfast. "Awe hell mum, I guess I'll have some Cheerios!"
*WHACK!*
He flies out of his chair, tumbles across the kitchen floor, gets up, and runs upstairs crying his eyes out. Mum locks him in his room and shouts "You can just stay there till I let you out!"
She then comes back downstairs and asks the 4-year-old "And what do YOU want for breakfast?
"I don't know... but you can bet your arse it won't be Cheerios!"