Where is his face

Homer grows suspicious of Ned's humanity.

And where is his nose ?!

Which episode is this from?

That plus no nose

Producers must've been as stoned as they look

Where's his nose

Theres a thing called in-between frames. They're disproporionate and very, very VERY fast, usually one frame, in order to make movements fluid. They're usually half-assed too since there's not enough time to see all the details.