Lovely man. My father knew him well back in the sixties, when he was developing Christies' wine department. After my father's death in the early seventies, Michael came up to Yorkshire to stay overnight, to list and value father's wine collection.
He must have been surprised, when the wines were subsequently sent down to Christies in London to be sold, to find that 6 bottles of Latour 1948 (my birth year) and six bottles of Lafite 1950 (my sister's birth year), were missing. Also missing were five bottles of Climens 1914 (which my sister and I had tried and liked). Michael never said a word to my mother, although I am quite sure he knew exactly what had happened.
When we met again, several years later, he immediately asked me to lunch in the Christies boardroom, although the missing wines were never mentioned.
Our paths crossed a number of times after that, when he was always, as others have said, courteous, knowledgeable, and modest. A long innings, and a fine one.