Building Your Delta Dart but only when he says mark the cut

A few days ago in school we saw this video and me and a friend thought it was funny how many times he said mark the cut. I had to watch the whole 44 minute video just to find when he said mark the cut so please subscribe.

please don't copy strike.

The guys youtube video:
https://youtu.be/1zOOK-oXKuM

Видео Building Your Delta Dart but only when he says mark the cut канала rom