I was wearing a MacPherson Dress kilt one day and had a little old lady (about 80) come up and say - "Are you a MacPherson" When I told her no she gave me the WHAT FOR.. I smiled and let her vent her outrage at my lack of tradition, when she was finished I wished her a good day, smiled, and walked away.

The Lesson I learned was from that point on... always remember to say.. "well my great great great grandmother's sister's husbands second wife was a "insert clan here" and I wear it in honor of her"

At least it makes them stop and think