I've never much liked perfume, but twice in my life I've smelt a scent so nice I stopped to ask the person wearing it what it was, both times in rushed public places (underground and hectic commute) and they both said it was Marc Jacobs, but didn't have a chance to give any more info. I finally had some time spare, at an airport lounge and tried all the MJ perfumes i could see but nothing smelt close. It was a very gentle, warm, vanilla-spicy scent....any ideas???