A woman whose husband is still at work has her lover over in her bedroom. Hearing all the ruckus, her son slips into the closet to watch. While in the closet, the husband comes home and the lover hides in the closet with the boy.

'Sure is dark in here, says the boy.
Sure is, says the lover.
I have a baseball I'll sell you for $150 and not tell my dad, says the boy
Sold, says the lover.'

The next week, the same thing happens.
'Sure is dark in here, says the boy.
Sure is, says the lover.
I have a baseball glove I'll sell you for $350 and not tell my dad.
Sold, says the lover.'

Later that day, the dad tells the son to get his glove and ball for a game of catch.
"Can't, said the boy, I sold them"

"How much did you get for them?", asked the dad.

"$500" said the son. The dad was outraged, knowing that the items were worth nothing like that, so he took the boy to the church to go to confession for being greedy for selling the items for way more than they were worth.

As the boy entered the confessional booth, he said "Sure is dark in here".

A voice answered " Don't start that up again. You're in my closet now."