Lo, I still think in this case the best defense is a good offense. Notice in this picture:
your general is the piece closest to his territory.
Hmmm... what am I going to gain there, whilst I'm trying to defend my known major? His major won't be catched. I would be in need to expose my unknown Colonel first, and go through the same drags that did NOT deliver the Colonel I was after earlier on in the game...
So I could have lottoed there&then, giving up my walkers, a.w. a major, sure. But I did not know 1 bomb. Now I know all these lieu's and captains over there, sure. But one of them could have been a bomb. And there were no majors to be catched while I surely would lose one. And ofcourse in 0% of chances I would have walked over to that flag !!!
As for Napoleon: that lottoblood US talks about is real. I've seen many times a bomb there. I remind you I evaded my Captain at first too. So with a Scout there, you could have jumped at my Spy, but it was your General. Finally I put my Captain back as my Marshal was unknown. Could have been bluff, and it was indeed bluff. For all we know it was a bomb there and not a Colonel. Why not? I do not let my Spy blocked in so he could walk away when a Major hits that Captain. No problems there.