A really interesting On Point Lexicon Valley episode about the ever-confusing response "yeah, no." It's a phrase that I love for its messiness, its depth, its complexity. Because it's unclear it's assuming that the person receiving the response of "yeah, no" has the intelligence to understand what you mean in context. You're trusting them to get it.
As a written response it's harder to get that message across clearly, but in dialogue it's something that could make a spot or movie or line or dialogue a little bit more powerful.