Bank Error in Your Favor

Last night we were playing Monopoly, one of my all time favorite games, when I got the 'Bank error in your favor, collect $200' card. This card was especially ironic since I recently experienced a bank error that was definitely NOT in my favor. I got to wondering; "Has anyone actually ever had a bank error in real life that was in their favor???" Oh, if only things in real life worked as they did in Monopoly...wouldn't it be grand if all that paper money was real, banks really did make errors in our favor, and the tax man only took 10%!