I don't think that it is true that if teams score against us our team collapses, if anything it is the other way around. Many times this season we let in goals and then we start playing...especially in the 2nd half when we wake up.
But we do give away silly goals and it is hard to see us not conceding, especially because we will have to attack so much.
The chances are slim, but nothing is impossible an early goal for us will put the cat amongst the pigeons! but I reckon they will get the early goal and knock the stuffing out of us and then it will definitely be all over, although we will still need 3 goals to tie and go into extra time.
Mmm yeah, I suppose you could say our team picks themselves up, but it happens a bit too late more often than not.
What I meant is that our defence panics after conceding (e.g. conceding cheap goals in the same manner).
What I mean is that there is a collapse that costs us dearly, before we start a reaction. I still remember that 7-5 freak game against Reading. Although we were playing many fringe players, that analogy remains valid.
I think Arsenal begins a match without the required concentration and then reacts when it's too late. Remember the CL last year against Milan. Our defence imploded in the first leg and we lost 0-4. Had we kept our composure and somehow controlled the damage, we could keep it as low as 0-2, and then win 3-0 at home as we did!

But then again, we wouldn't play with as much urgency

This upsets me about this team, because it gives us the idea that they could be performing so much better.
I'm not sure Bayern will underestimate us. The Germans mean business, these guys are serious, the players are experienced and they see out the job til the end.
What we really need is a freak occurrence to go through
EDIT: Fabianski confirmed in goal. If you had any hopes of a miraculous clean sheet, they're crushed now:
http://news.arseblog.com/2013/03/szczesny-rested-for-munich/?utm_source=dlvr.it&utm_medium=facebook