[quote=@Ammokkx]

Well, speaking for Lock, he'd agree with the "Loose metal from chair" idea. It's logical and would be the quickest way to get something to force the door open with, and he'd personally offer to put himself in the way of danger if nobody else would like to.
[/quote]

Itaki is on the same route. If anything, prying the door open gives us more room to avoid whatever is outside. 

What we haven't considered is that we don't know which train car we're in... We could have to pry multiple doors open to get to the front of the train. 

EDIT: Ninja'd by el jefe