There should be an achievement for this
In Portal, Testchamber 13:
Despite the best efforts of the Enrichment Center staff to ensure safe performance of all authorized activities, you have managed to ensnare yourself permanently in this room.
A complimentary escape hatch will open in Three… Two… One.
August 8th, 2009 at 08:27:56
Check out “Like A Rat” (Portal: Still Alive Achievements).
When I did it, I couldn’t tell if I should be proud or if I should be ashamed. :)
August 8th, 2009 at 15:52:57
Ah, so only in the XBLA version. Rats. ☺