I purchased a few small items from United Colours of Benetton (in Sofia), and presented my credit card to the cashier. He scrutinized my card and asked for my passport to confirm my identity. I felt offended on the spot and confronted him for what good sake was that. Never had I experienced before anywhere else. I was using it to pay for the mere Eur 26! I would be insulating myself if I had to cheat for this amount?