1. Most domestic toasters pop up and switch off...many commercial toasters as used in the NHS, do not.
Staff call or emergency buzzer goes off...so do the staff and the toast burns!! Okay more staff training required, but with so few staff and so many patients...etc, etc
2. Conventional self closer with a dwell device can solve the 'trolley access' wedge the door problem and still keep the door closed to contain the fire, or prevent the UwFS.
3. Fire or False Alarm...almost always a false alarm...no FDR 1 for the Sub.Officer / Watch Manager to fill in, or Brigades logging toaster fires as false alarms to keep the FDR1 stats down and massage IRMP's etc...what a wonderful fire safety job they are doing....very large tick in box!
4. Mrs Downes is a Midwife... unlike a Nurse, she never ever burns the toast!!