You know, you get flushed, or you start getting jittery, you know, I start kind of getting tired, it's like, okay, well sometimes physiological responses you can't change, but oftentimes the behavioral responses you can, right? So maybe you start snapping at your spouse, or your kids or something, and then you start getting anxious and talking really fast and you realize: "okay, well, that's not serving my purpose of the underlying value, which is to really communicate this important thing that I have to share".