[Zim stops listening approximately halfway through that sentence. Or disregards it. Or he didn't hear it in the first place. With him it's hard to tell whether the whole not listening thing is deliberate or if he just has problems.

Either way he puts his hand on his chest and answers all patronizingly.]

I am a perfectly normal human child who has overcome his skin condition to be like all the other normal, filthy children. You... horned pig.

[Well, he is pink....]