I've just seen an interesting snippet on the evening news programme. Apparently a double glazing company, fed up with the not especially high regard in which most of us hold their salesmen, have taken to issuing them with portable lie-detectors, presumably to be used to reassure their victims - sorry, clients.
This had got me thinking - if the devices actually work properly, could we extend the principle?
Consider how good it would be if our politicians were issued with them !