I guess this could be considered a spoiler so if you haven't finished the game or don't care to be spoiled then you should stop reading now.
I'm curious, is there a second part to the game? At the part where you choose to either run and try to escape with Wheatly OR continue the tests with GLaDOS. I chose to try to escape.. Are you forced into the escape or is there another part of the game for those who decide to continue with the tests?
I don't want to play through it again if there you are forced into the escape, but if there is more to it then I'll gladly go back to check it out
Credit for the creation of this awesome signature belongs to Shyama