Originally Posted by Anno_Domini
There's no correlation of Batman being smart and going straight after Bane's mask. To Batman, it could have been something to scare his opponents as much as Batman's cowl or Joker's "war paint".
My thoughts exactly.
Also, I really wonder what Bruce thought would happen if he defeated Bane in the sewer anyway. It's like, there's still a whole army down there waiting to open fire on him even if he does. Not to mention all those charges were already rigged and someone else had the detonator. He had absolutely no chance the moment that gate slammed shut. I really think he was ready to go out in a blaze of glory down there.