Only because it's a classic

A housewife takes a lover during the day, while her husband is at work..
Unknown to her, her 9 year old son was hiding in the closet.
Her husband came home unexpectedly,
so she hid her lover in the closet.
The boy now has company.
Boy: "Dark in here."
Man: "Yes it is."
Boy: "I have a baseball."
Man: "That's nice."
Boy: "Want to buy it?"
Man: "No, thanks."
Boy: "My dad's outside."
Man: "OK, how much?"
Boy: "$250."

In the next few weeks, it happens again that the
boy and the mom's lover are in the closet together.
Boy: "Dark in here."
Man: "Yes, it is."
Boy: "I have a baseball glove."
Man: "How much?"
Boy: "$750."
Man: "Fine."

A few days later, the father says to the boy,
"Grab your bat and your glove. Let's go outside and play some baseball."
The boy says, "I can't. I sold them."
The father asks, "How much did you sell them for?"
The son says,"$1,000."
The father says, "That's terrible to overcharge your friends like that.
That is way more than those two things cost.
I'm going to take you to church and make you confess."

They go to church and the father alerts the priest,
he makes the little boy sit in the confessional
and closes the door.

The boy says, "Dark in here."
The priest says, "Don't start that crap again"