[ Toph is perfectly aware that nothing will make her sound actually ten like protesting that she's thirteen, so she doesn't. But she does say scornfully, and with utmost sincerity: ]

Please, I have better things to do than mess around with pointless kid stuff.

[ Toph pops to her feet, partially wrapped with gauze, and follows the directions for finding the suggested potassium. Being a walking lie detector in terms of sensing heart rate fluctuations, she has no reason to doubt him. ]

Thanks for the tips, old man. Does this come with instructions?