People who feel unkindly disposed towards economic migrants are chemically imbalanced, according to a study from the University of Bonn. More specifically, they are deficient in oxytocin, a neuropeptide hormone sometimes known as the ‘cuddle drug’ because of its ability to turn normal human beings into simpering halfwits.

Psychologists ran a series of studies in which Germans were asked how much money they would like to give to, say, Tariq and Mohammed, who have just arrived here from Syria.