Kid says the darnest thing…again

Ann spilled her orange juice.
Me : Told you never to play while eating or drinking
Ann : Sor…ry
Me : Go get yourself another cup
Ann : (Brought out a new cup, about to pour out her juice)
Me : Why do you need a clean cup, you can use the same one.
Ann : But you say get another cup mah!
Me : Duh….