Theology students at Glasgow University have been told that they can leave lectures if they find images of the Crucifixion too upsetting. This is under the system of “trigger warnings”, the latest manifestation of the belief that nobody should ever be upset or offended and that all the world must be a “safe space” free of statues of people we don’t like, of opinions with which we disagree, where rudeness is criminalised rather than regarded as ignorant and where hurt feelings can be turned into cash.