Bryan,

Actually had a similar interaction yesterday. Took the kids out for a walk in the woods to enjoy the fall colors and tramp around in all the leaves on the ground. After, we went for lunch to a local pancake house/diner. Great meal, small town atmosphere with mostly locals. Think you know the kind of place. Anyway, as we are standing at the front counter paying, the cashier turns to me and says "I just have to ask, are you going to a party or is that for Halloween, or some other reason?" I responded that I wore the kilt because I liked it and because I am of Welsh descent. He was fine with that and we left.

I did like your response, mine would probably have been similar but I would have said "No, but I would love to join yours!"