Don't Question It is the 36th cutscene in Run 3, if counting all hidden and optional cutscenes.
This is a minor, as well as the 3rd optional cutscene in game. It is only initiated when playing through an optional Box during the Bridge Building minigame.
The Skater says that he doesn't want to do science but have fun. He states that some things shouldn't be questioned. The Student disagrees. The Skater asks why, and she replies that questions lead to discoveries. The Skater says that he was just asking a rhetorical question.