Ethan Teaches Mark How to Swim

Summary
Ethan jokingly teaches Mark how to properly swim in his pool in a form of a sarcastic educational video, with its visuals being stylized to mimic the appearance of 1990s VHS recordings. In a post-credit scene, a montage of disturbing imagery with distorted sound plays, as the video closes off to wish Mark a happy birthday.

Fake-out endings

 * Ethan asks of Mark to retrieve several totems from beneath the pool's surface. After he refuses, the video comes to an end, with the Unus Annus outro timer overlapping across the black screen, before resuming a few moments later.