Just Loafing Around

Justin: Mom, are you going to mop today?
Me: (cautiously) Why yes, I was planning on it.
Justin: You know, if you mop first thing this morning then you will have the rest of the day to play games and do whatever you want.
Me: Oh, Justin, you have no idea what you are talking about.

Justin looks confused. I proceed to list off everything I have to do today on both hands, not including normal motherly duties.

Justin: Oh...