When is a good time to tell your girlfriend you wear a kilt to the Scottish Highland games?

I went to the Highland games today. All the male competitors and half the male audience wears kilts. I think it's cool but I'd never wear one.
  1. Some of the guys in kilts had girlfriends who were not in Scottish attire
  2. Their girlfriends appear comfortable walking around with a man in a kilt, but I imagine my wife would be embarrassed and I'd be embarrassed telling her I like to wear a kilt.
  3. So I was wondering, when do you tell your girlfriend you wear a kilt to the highlands game, and how?
  4. Guy: So... Every year I go to this Scottish festival, with these strong man competitions called the Highland games...
  5. Girl: ok?
  6. Guy: Well... I wear a kilt to it...
  7. Guy: And knee socks with matching plaid ribbons...
  8. Guy: And I carry a sword too...
  9. Girl: What did your last girlfriend think of this?
  10. Guy: she broke up with me