Meet William Grove, 84-year-old, late of the Royal Air Force, and by late I mean 65 years ago. Whilst walking down a London street Mr Grove chanced upon two local simians engaged in breaking into a jeweller's using hammers. Using his training from 65 years previously he accosted one and managed to get its mask off, thus allowing the police to use DNA from the garment to apprehend one, and later convict both, would-be thieves.
Mr Grove isn't unique in his crime-fighting but there is one particularly admirable aspect to his actions. When asked why he did it, he said, "Because I was the nearest." It's that old-fashioned attitude that any upright citizen can and should intervene which is to be treasured.