That's an interesting encounter! I was once similarly surprised by a DC touching my shoulder, since I usually don't think about what's behind and quite often there's nothing there until I decide to look. Unfortunately, it was just a regular guy. Oh, wait, there's one good brief somewhat intelligent conversation that I had with a female DC, I was looking for advice in general and she told me that one has to "live in harmony with the surroundings because it affects our DNA". That's as fas I got, then some kids stormed the room and the dream soon ended.

Sweet dreams!