If they were being robbed while I was outside and carrying, I would just laugh and walk away. And I would not cooperate with the police by being a witness either.
Like to old saying, "Live by the sword, die by the sword", I would think "Live disarmed, die disarmed".
The bankers are criminals in suits, so why help them.
"Bend over and grab your ankles" should be etched in stone at the entrance to every government building and every government office.