Gloups! Je suis un poisson

Fly: [chasing Joe in the water pipes as he escapes with the antidote] Wait! Wait, come-come back, you-you stupid fish!

Joe: [coldly] I'm sufficiently intelligent enough to kill you... if you don't stop bothering me.

Fly: So what? Any brute could do that. But can you tell me what the square root of... 6,561 is?

Joe: [stammers] Uh, 300 divided by 40, minus 3 is... .

[he turns to drink more of the antidote and develops a swollen head]

Joe: Ah! 81!

Fly: Yeah! But do you know what happens if an object travels at the speed of light?

Joe: [drinks more of the antidote and sprouts spines, legs and arms, and tears his pelvic fins off] Ah! It turns into pure energy!

Fly: What came first, the-the chicken or the egg?

Joe: [drinks more of the antidote and grows in size, grows hair and longer limbs, now resembling a fish-human] It depends on the relative amount of molecules in the universe!

Fly: What happens to a fish if he drinks too much antidote?

Joe: It... becomes...

[wheezes for breath]

Joe: HUMAN!

Fly: [coyly] Can a human breathe underwater?

Joe: OF COURSE NOT!

[he realizes he can no longer breathe underwater and drowns, sucked away by the pipe's current]