Awesome!
It would be a good joke to pretend there was a run on the bank because people have finally realised that they don't really hold enough assets to cover everyone's account.
Excuse me Ladies and Gentlemen - we'd just like to ask you not to make any large withdrawals as the bank doesn't have enough funds to cover them. Banks are not required by law to actually have the assets to cover loans, so if everyone was to try to withdraw their money at the same time the whole system would collapse and they'd have to close down.