"Hey, you don't see me going around talking about space ships and something as dumb as going to other planets." He rolled his eyes and his wrist, dismissing her crazy accusations as though everyone were used to seeing her spout out insanity. "Boy, that's crazy-talk if I ever heard it. I remember some of the other things she's said.."

Oh Yzma. There is no arguing with Zim. He'll contradict himself with his lies before he admits to anything. Ever.

"There's no such thing.~" He tapped his fingertips together with this....frightening..grin that tried to look just as nice and inviting as his voice sounded, but he just looked kinda..annoying. Yeah.