“At the dinner table...

CALVIN, looking like an x-ray version of himself:
Bombarded by high energy photons, Calvin is transformed into a living x-ray.

CALVIN:
Although this condition will facilitate future medical diagnoses, it does make Calvin's presence at the dinner table a disgusting ordeal.

CALVIN:
Everyone can see Calvin's food being ground into mushy pulp and swallowed!
At this moment, Calvin chews up a large spoonful of creamed corn!

CALVIN'S DAD, leaning in at the dinner table:
For gosh sakes, close your mouth when you chew!!
You think we want to SEE that?

CALVIN, physically back to normal, except that his mouth is open amazingly wide, with full view of his current mouthful:
MKGHH!
SMACK!
BLAGHKH!”