Once, after a lovely evening of drinks and dinner, my date invited me back to his apartment to see the Greek vases he had inherited from his godparents. I’m an art historian who studies the criminal underside of the antiquities market. As he rooted around in his cupboards, I tried to think of the most tactful way to tell him that the vases, bought without any information about their source, had probably been looted from an archaeological site. He finally unearthed them from an old Tupperware box above his refrigerator. The objects he plunked down in front of me had clearly not been looted. ‘Oh, but these are all fakes!’ I blurted out with relief. Way to ruin a date.