Smith goes to see his supervisor

Smith goes to see his supervisor in the front office. "Boss," he says, "we're doing some heavy house-cleaning at home tomorrow, and my wife needs me to help with the attic and the garage, moving and hauling stuff."

"We're short-handed, Smith" the boss replies. "I can't give you the day off."

"Thanks, boss," says Smith "I knew I could count on you!"