Here's one… my grandfather, who was born and raised in what is now Karachi, Pakistan, (and had a British father and Irish mother, though he looked an awful lot like Ghandi in his later years), made the SPICIEST (traditional) curry around. He and my mother were the only ones who would eat it. Not my grandmother, who was from Burma, not my aunt. And not me, as a child. Probably not even the dog. My earliest smell memory is of his piquant curry wafting through his house on campus at Vassar College (in New York state). I have never smelled that particular blend of curry spices since. My mom said he used to friends send him back spices. (deep inhale) I miss it.