So I found myself wondering whether society itself has more automatic traffic lights than is good for it. It is plain that we need the big red lights: don’t kill, hurt, imprison, steal or cheat. There is also an obvious role for general offences, on the model of “careless driving”. We have plenty — insulting behaviour, conduct liable to provoke a breach of the peace, outraging public decency, harassment, causing public nuisance, child neglect, endangering safety, littering. Yet month after month, year after year, micromanaging regulations are added, refining things down and creating pointless red lights.