You have to pick:

I was Frank from Rocky Horror last time I dressed up for Halloween, so I have no problem transforming into him. :)

bryan.derksen:
-> I want to be a bear pilot. I can stand the bear insults.
jonthompsonsemail:
-> Just what I was thinking
bryan.derksen:
-> Or should I say... I can bear them.
thehankerchief:
-> how fast does a bearplane go?
jonthompsonsemail:
- If you crash one does it leave bruins?
bryan.derksen:
-> A grizzly scene.
-> Sorry. I shouldn't panda to the pun-loving crowd.
jonthompsonsemail:
-> Thats some pretty black bear-humor
bryan.derksen:
-> That was poor koalaty humor.
jonthompsonsemail:
-> If you command a squadron of flying bears does that make you an Ursa Major?

Seems to be a rather Polar-izing option.

So if I turn into Chell from Portal, am I also sent to an underground lab for tests? Or do I still have my life, I just have a neat gun and can't talk.

I think the latter. But perhaps GlaDOS is searching for you, and would really like to bring you back for some additional tests. Be careful.

Sounds like a grizzly situation.