No humor here.

A man with dark hair and a green sweater looks at a wooden door, then the scene cuts to a close-up of a gorilla yawning widely, followed by a man with a shocked expression, then back to the gorilla yawning, and finally a close-up of the man's face with a wide-eyed, open-mouthed expression of shock. The sequence loops, alternating between the man's reaction and the gorilla's yawn, set against a wooden door and an outdoor background.