Hey, who cares about them? If they screwed you over and you decided not to stick around and continue getting screwed over, then that's that.

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Tough luck for them, but then again, I'm not to sure they'll miss one customer

. Unless......yes, dude, just rally up a few dudes, go down to the mall, rally up some more dudes and run down the street screaming insults and nasty things at the bank's executives. Be sure to have made signs and banners that you will carry on sticks and wave around like giant swats.
I think the technical word for it is a "strike"
