Two little boys 5 and 6 are talking about being grown up. They decide that the difference between kids and grown ups is that grown ups swear. So they decide when they go down for breakfast the next morning to be adults. They agree that the older brother will say hell and the younger one ass.
As the two boys sit down at the breakfast table, their mother asks the older boy what he would like for breakfast. He says, "Hell, Mom, I'll have some Cheerios!"
His mother thumps him on the head and sends him to his room. With an angry snort, she turns to her younger son, "And what would YOU like for breakfast?"
"I don't know," the little boy blurts out, "but you can bet your ASS it's not gonna be Cheerios!"