OK, so the above video is a guy playing through This is the part where he kills us... Initially, the guy does the proper thing, and portals through the opening provided by the lunar paint to make his escape from the platform. I thought that'd be that, but he returns when Wheatley implores to player to go back to the platform, and then Wheatley gives some hilarious dialogue about "resetting the death trap", asking us to "jump into the pit", and acting surprised when the girl actually does do so.
My question is: Are there any other such funny/humorous/interesting bits of dialogue, any events really, that one can find in Portal 2 when one strays off the beaten path? I'd like to through them for myself...