Some years back, I visited the Freud Museum in London, once the final home of Sigmund Freud, the founder of psychoanalysis, and his daughter Anna Freud, a pioneering child psychoanalyst. (The Freud family had come to England as refugees, following the Nazi annexation of Austria in March 1938.)
On Freud’s desk in his study stood a metal figure of a porcupine with quills, a figure he apparently kept there all the time. Why a porcupine?