Invader ZIM lasted for just under two seasons on Nickelodeon. Jhonen Vasquez has been quoted as saying he will never understand the thought process that says, "Hey, we need a half-hour cartoon to go between Rocket Power and The Wild Thornberrys - whaddaya say we get one from that guy that does Johnny the Homicidal Maniac?"
Jhonen was also very displeased with the way Nickelodeon closed him out, especially the fact that they hung onto the rights to the 'toon - meaning that when Cartoon Network started their Adult Swim program, a section into which ZIM would actually have fit, Nickelodeon was able to squash the deal by quickly sticking it into a forgotten slot on their own brand-new all-cartoon channel, NickToons.
Rikki Simons, the voice of GIR, is thankfully far less publicity-shy than Jhonen, and has been known to participate in voiceover workshops at the San Diego International Comics Convention (also known as "ComicCon", or, to my wife, the "Annual International Aspie Convention").
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Sodium is a metal that reacts explosively when exposed to water. Chlorine is a gas that'll kill you dead in moments. Together they make my fries taste good.