He Couldn't Believe How Cheap This Restaurant Was. But When He Found Out Why – Lordy

A guy walks into the bar of a restaurant, goes to the bartender and asks, "How much for a beer?" 

The bartender replies "1 dollar."

The customer, completely amazed, orders a beer then asks the bartender,  "Well then, how much for a NY sirloin, with side of mashed potatoes and salad, and an entire cheesecake for desert?"

"5 dollars," the bartender replies. 

The customer, still amazed, orders just that. After he is done eating his meal, he says, "Wow, this place is amazing. I really wish I could meet the owner of this place." 

"Well, he's upstairs in his office with my wife," the bartender informs him.

The guy, confused, then asks, "What is he doing upstairs in his office with your wife?" 

The bartender replies, "The same thing I'm doing to his business."