In the aftermath of 9/11, a lot of Sikhs in the UK wore T shirts saying "Don't freak, I'm a Sikh". Sad that it was needed. Having said that, I was passenger aboard a cruise ship on 9/11, and one of the passengers said to me that she was worried about a fellow passenger. Elegantly dressed, beard, and turban. I explained that he was a Sikh, and she hadn't a clue.