Dark in here.

Via Froggie

A Woman takes a lover during the day while her husband is at work. Her 9 year old son comes home unexpectedly, sees them and hides in the bedroom closet. The woman's husband also comes home. She puts her lover in the closet, not realizing that the little boy is in there already.

The little boy says, "Dark in here."
The man says, "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 lover are in the closet together:

Boy - "Dark in here."
Man - "Yes, it is."
Boy - "I have a baseball glove."
The lover remembering the last time, asks the boy, "How much?"
Boy - "$750"
Man - "Fine."

A few days later, the father says to the boy, "Grab your glove, let's go outside and have a game of catch."

The boy says, "I can't, I sold my baseball and my glove."
The father asks, "How much did you sell them for?"
Boy -"$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 the church and the father makes the little boy sit in the
confession booth and he closes the door:

The Boy says "Dark in here."
The priest says, "Don't start that shit again".