A 6 year old and a 4 year old are upstairs in their bedroom.
"You know what?" says the 6 year old.

"I think it’s about time we started cussing."

The 4 year old nods his head in approval.

The 6 year old continues, "When we go downstairs for
breakfast,  I’m gonna say something with ‘hell’ and you say
something with ‘ass’.

The 4 year old agrees with enthusiasm.

When their mother walks into the kitchen and asks the 6 year
old  what he wants for breakfast, he replies, "Aw, hell, Mom, I
guess I’ll have some Cheerios."

WHACK!

He flies out of his chair, tumbles across the kitchen
floor,  gets up, and runs up stairs crying his eyes out, with his
mother in hot pursuit, slapping his rear with every step.

His mom locks him in his room and shouts, "You can just stay there
until I let you out!"

She then comes back downstairs, looks at the 4 year old and
asks with a stern voice,
"And what do YOU want for breakfast, young man?"

I don’t know " he blubbers, "but you can bet your fat ass it
won’t be Cheerios."