A violent response is out. If you're going to shoot all the stupid people, then you'll have to shoot yourself, too, since you're just as stupid. Maybe even more so, if violence isn't really necessary. An emotional response is out. They're not going to have any effect on a stupid person.
Inactivity is out.
If the bank mangled your checking account, doing nothing to correct the error is stupidity on your part. Take a deep breath, take care of the situation, and move on. After all, the people you're dealing with are stupid, and excessive commotion is just going to be wasted on them anyway. There's one benefit to all of this stupidity. That's my view, anyway.