Well, I would not use force against someone stealing the bank's paper notes (note that I did not say "money" because it isn't). The perpetrator's would have to be threatening my person before I'd consider the use of force.
Of course, everyone is different. And to each his/her own.
i know what you mean, but im sure at some point the BG would have aimed his weapon at me, which is the threshold for danger (IMO)