And while I'm ripping this thing to shreds, I might as well point out that on 4 separate occasions (in the text, in the audio, in the video, AND in the picture) this article states that if you appear angry or upset you are more likely to get good service. Thanks Sarah Nassauer. Thanks a lot. That's a great message to put out there.
Oh, and I stole this graphic directly from the article itself, but I intentionally made it too small to read. You're better off that way.