Banks can always go bust without savers being affected. You have a well documented resolution procedure for banks, which involves the shareholders taking a bath

Banks can always go bust without savers being affected. You have a well documented resolution procedure for banks, which involves the shareholders taking a bath and HM Treasury recapitalising the bank using the Contingencies Fund. It is for the Bank of England to take the loss, not the depositors, since the Bank of England is regulating the banks.