Fair's fair

"Hey Geekman, how come I'm carrying all of the groceries?"

"Back there in the shop, you said I was incompetent. You wouldn't want an incompetent person carrying your food, would you?"

"I never said you were incompetent! Oh except for... okay, I might have said something that implied you were being incompetent."

"Well, if you like, I could say something that implies I might carry some groceries."