Dad and Timmy in “Unfinished Business”

Hey, guess what, Timmy, we're gonna grade you on your performance! We'll give you an A-! [holds out an A-]

An A-minus?!

Up-bup-bup, questioning the grades, that gives you a B. [holds out a B]

But...

Talking back, that gives you a C! [holds out a C]

A C?!

Raising your voice! D! [holds out a Q]

That's a Q!

That gives you an F, smarty pants! [hands him an F]