Calvin is mortally offended by this slight against his flying abilities. "That's not going to happen! I have stupendous flight, remember? I might as well be in zero-gravity right now. And I've got total fine-tuned precision control over my every movement."

He bobs up and down in mid-air a few times to demonstrate how exactly he can handle his hovering. "My brain is like a delicate avionics instrument, perfectly calibrated to compensate for every- YOWCH!"

And that would be Calvin demonstrating his brain's delicacy by bobbing a bit too far down while talking, and touching his bottom off the edge of the grill. He immediately shoots back into the air, yelping and rubbing himself.