“[S]ocial order displays not the absolute presence or absence of intolerance to difference but a spectrum of intolerance. Each of us bears responsibility to some degree for maintaining these protocols of intolerance, which could not be kept in place if every single one of us did not play our part. From bringing up children ‘appropriately’, to lovingly correcting or punishing their inappropriate behaviour, to making sure we never breach the protocols ourselves, to staring or sniggering at people who look different, to coercive psychiatric and medical intervention, to emotional blackmail, to physical violence-it’s a range of slippages all the way that we seldom recognize.”