The problem with letting “your yes be yes and your no be no” is that one day you’ll forget that you said “yes” to something. Something very small perhaps, but something. It will slip your mind or you just won’t think it was the big deal that everyone else did. And when it starts to get late, everyone will be like, “She’ll come. She said she would.” And when you don’t come, they call everyone you know plus the National Guard because you have obviously been kidnapped.
Maybe we should all just stick with “maybe.”