Is it time to trot out all the recorded incidences of badly marked or unmarked limits, or the semi-rural roads that change limits half a dozen times in a couple of miles, often seemingly for no reason ? The 30 limits that stretch on outside a village for half a mile into open countryside to "protect" one farm entrance, or whatever ?
No matter how much you might like every car driver in the UK to be trained to traffic-police standard, it ain't going to happen this side of doomsday. Observance of laws must surely be at its greatest when those laws are sensible and clearly laid down. Speed limits that pop up and down like a tart's knickers fail in this regard. I don't speed in built-up areas, nor (greatly) on open roads, but I'm often getting caught out (mentally, not by cameras) in areas in-between. If the more authoritarian ACPOs who preach the "0.1 mph over is a crime" mantra get their way, I could quite easily contemplate acquiring a protective device.
A speed camera is not a hazard, either.
-- Send $50 and I'll double your IQ or no money back!
Mail john rather than nospam...