Board Thread:General Discussion/@comment-26006155-20190820122909/@comment-26907577-20191118121711

...Good point about how Sans takes you on shortcuts. That busts my hypothesis there. (Unless he's doing something REALLY funky to pause the player and not Frisk... but I won't go there.)

It probably takes a lot of Sans's energy to pause time for more than a few minutes. It probably doesn't make sense for him to pause you to draw out his relative time, especially since the point is for you to get bored and give up. He could pause you and do stuff, but since the goal is for you to reset, none of the stuff he could do would help.

Fact check: You mixed up Neutral Pacifist and True Pacifist. How would you even access Sans's Room once you were locked in? No, you get the key after repeatedly listening to the Neutral Pacifist monologue. Sans doesn't actually appear in the True Pacifist Last Corridor.