New Instructions from the  DVLA
 "In order to assist other motorists  in identifying potentially
 dangerous drivers, it's now  compulsory for anyone with a lower
 than average driving ability to  display a warning flag 
 The flag (comprising of a red cross  on a white background) will
 be attached to the top of at least  one door of their vehicle. 
 For drivers of exceptionally low  ability, additional flags are
 required." 
 At last some thing that will really work I think 4D
