Yang Kai: "Take a single drop of this medicine every day."
Room temperature IQ parents: "One drop is so little. Might as well make it a shot."
Although to be honest, it was Yang Kai himself who lied about the ingredients being nothing special and that he can make it whenever he wants to. In reality he has what he has and then it's gone. Really smart lying about it, but he has grown as a cultivator to the point where lying is as natural as breathing for him, so he's doing it even when he shouldn't.