The man’s wife was upstairs with the boss doing things she shouldn’t be doing

A man goes to a restaurant for dinner.

He has a seat at a table and opens a menu to find out that none of the foods have prices next to them.

He beckons the waiter over and asks, “How much is the Fettuccine Alfredo?”

The waiter says, “A penny.”

The man exclaims, “A penny? How much for a steak?”

The waiter says, “A nickel.”

The man is astonished.

“Are you serious? Where’s the man who owns this place? I’d like to shake his hand!”

The waiter answers, “He’s upstairs with the kitchen-hand, who happens to be my wife.”

Confused, the man asks, “What’s he doing upstairs with your wife?”

The waiter smiles and says,

“The same thing I’m doing to his business down here.”