Well MM or DFM it doesnt matter, it is still a medal to be very proud of. Speaking as a post war nav whose biggest problem was finding that the sandwiches in the in-flight rations were a bit stale, I have the highest regard for these guys, and think they all deserved a medal, although of course that never happens. I have talked to scores of WW2 veterans over the years and never ceased to be amazed at the experiences they had. I really hope he has a great day, and who knows, it might encourage him to talk about his career.