When this conversation happens with your DS2.8 right before sleep (it's always right before sleep, it seems...)
Me: DS, please don't jump on me without warning.
DS: Okay Mama, I will let you know next time before I leap on you.
1 or 2 minutes later
DS: (Musing over our exchange.) Mama, I listen to you and do what you say. When you say "yes", I listen.
Me: What about when I say "no"?
DS: I listen when you say yes and don't listen when you say no. (DS nods sagely at his declaration.)
Me: I love you very much and only say no for your benefit, usually for safety reasons. You have to trust that when I say no, there is a good reason. You can always ask for my reasons, and I will hear counter-arguments. But, when I say the discussion is over, you have to accept my decision.
DS (magnanimously): Okay Mama, that seems fair. I'll listen to you when you say yes and no. (DS beams a 500 watt smile that would melt the iciest of hearts.)