I'm sure a fire must be all crew's worst nightmare.
Fire is almost anyone's worst nightmare whether in an aeroplane, a ship, a vehicle or a building!
Indeed, aeroplane engine fires and a remote way of extinguishing them made "Graviner" a very successful British company in 1933. It trades today as "Kidde Graviner" .
History
The "Graviner" system, however, still works on the same principles that saved the lives of many a World War Two RAF aircrew.