I have blocked myself a few steps away from the exit quite a few times. Frustrating, and yet, very fun. A perfect combination of both. Unfortunately, the janitor will have so many nightmares about me.
Just saw it. Well, it definitely didn't go that smoothly for me, haha.
(Of course :) Seeing what fun/silly things other devs add to their games is one of my favourite parts of checking out and, more recently, participating in game jams)