Thanks to "SFG" for this one...
A woman takes a lover during the day, while her husband is at work.
One day, her 9-year-old son hides in the closet during one of her romps. Her husband comes home unexpectedly, so she hides the lover in the closet.
The little boy says, “it’s dark in here.”
The man whispers, “yes, it is.”
“I have a baseball,” the boy responds.
“That’s nice.”
“Want to buy it?”
“No, thanks.”
“My dad’s outside.”
“Okay, how much?”
“$250.”
In the next few weeks, it happens again that the boy and the mom’s lover end up in the closet together.
“It’s dark in here,” the boy begins.
“Yes, it is.”
“I have a baseball glove.”
The man thinks about the last time they were in the closet together, and decided to cut to the chase — “How much?”
“$750.”
“Fine.”
A few days later, the father says to the boy, “grab your ball and glove. Let’s go outside and play some catch!”
“I can’t. I sold them.”
“How much did you sell them for?”
“$1,000,” the boy replies, smilingly widely.
His father responds, “it’s terrible to overcharge your friends like that. That’s way more than those two things cost. I’m going to take you to church to confess.”
The two go to church, and the boy’s father escorts him to the confession booth. Once inside, the boy states, “it’s dark in here.”
The priest replies, “don’t start that crap again!”