The worst thing about that XKCD comic is that I can't get annoyed about seeing it for the thousandth time without risking a recursive loop of comic posting, me getting annoyed, comic posting to explain why I'm wrong to be annoyed, more annoyance... it's a problem, though admittedly not my most pressing one.
Behind closed doors on Greek Row those Sigmas and Taus .. let's just say they apply to an entirely different distribution, if you know what I'm saying.