Rant

So I wanna know something: what is UP with people who reply "uh-hu" after you say thank you? Was my thank you not good enough to garner a "you're welcome?" I'm just curious because tonight at the super market, I was checking myself out and got charged double for my baby artichokes. I pressed the help button a few times and no one showed up, so I continued to ring up my groceries. I then pressed the help button a few more times, still no response. I decided to walk down and bag my groceries while waiting for someone to show up. Finally, this woman walks over as if she is doing me a favor and shoots me a what-the-hell-are-you-bothering-me-for look. I explain to her about the artichokes and she begrudgingly walks over to the screen to take care of it. When she finishes I thank her, to which she replies "uh-hu." What is that? Why not just say what you mean, which from the attitude this girl was giving me was more along the lines of "fuck you." "Uh-hu" is the polite way of saying "fuck you," similar to "whatever" but a little less confrontational. It likes tells you their outfit looks good on them and ends the sentence with "right?" to which you respond "sure!" What you really mean is "hell no!" What's with the subtext? In this day and age where you can contact someone in any fashion without feeling like you're getting too personal, why not just say what you mean? Either that or getting a new fucking attitude. Whatever.