sed happens T-Shirt

This is a multi-level pun on the different meanings of the word "sed". Short for "stream editor", "sed" is a UNIX utility. It's arcane and can be difficult to understand, but sometimes it . . . happens that it's the best tool for the job. Or maybe the guy before you thought so, and you don't agree because you don't immediately grok ''1 d;3,$ {s/^[0-9].*/&;&/}', but now you have to deal with it. Sed happens. "SED" can also be short for "smoke emitting diode". It happens, usually when you've wired it up the wrong way. "Sed" is Latin for "but". "Buts" happen too, and they can be inconvenient. "Sed" is also Spanish for "thirst". That DEFINITELY happens. Anybody for a beer?