Epic Mom-ness

Mom: "Does this light get any brighter?"

Me: "No, that's the brightest it gets."

Mom: "Well, it's one of these turn-switches, it can get brighter or darker."

Me: "I know, but it's at its brightest now."

Mom: "Well, why don't you turn it brighter?"

Me: "I can't - I turned it on this morning and I know that it's as bright as it gets, now."

Mom: "Well, why don't you try?"

Me: "..........."  (walks across the room and turns the light dark to light)

Mom: "Oh, so that's as bright as it gets?"

Me: "..........Yes."

Mom: "Oh, well, I didn't understand you."