Invader Zim,the Nickelodeon animated series approximately a kid alien set on total human annihilation by Jhonen Vasquez, began airing all the way back in 2001. Chances are, and whether you watched it as it first aired,you were young! At the very least you were 18 years younger than you are now. Have you watched it recently? It's absolutely going to mess you up more nowadays than it did back then whether you do.
Source: blastr.com