Its been keeping me awake at night and videos like this one below have not helped!
Well i have done something about it and fitted a Firetrace Auto Fire Extinguisher that will blast any nasty engine fire right on the hot spot thanks to its 'pattented linear detection tubing'. It was a doddle to fit and got a healthy discount thanks to being a member of my local VW Club and Firetrace being based in Ipswich. They also gave me a bracket for the back up cylinder that is now just for those annoying cooking inferno's in the bus. Fingers crossed i will never need either but feel much more relaxed now my baby's protected.