[Professor Knight conducts a practical class on scary faces]

Ogre Slump.

[lets his arms and jaw slump down and half-closes his eye]

UUUUHHH!

Zombie Snarl.

[raises his hands over his head and bares his teeth and tongue while dropping his jaw]

RRRARRGH!

Dominant Silverback Gorilla.

[arches his back and toes and pumps his fists to the ground while jutting out his chin]

MM-PM-PM!

That is some remarkable improvement, Michael.

[shrugs off a menacing grimace]

GRRARHR.

One frightening face does not a scarer make, Mr. Sullivan.