"Excuse me, are you the prime minister," an Indian woman asked when David Cameron, who was travelling in the London Underground, struck up a conversation with her.
http://ummid.com/news/2011/October/17.10.2011/indian_woman_to_uk_pm.htm
http://ummid.com/news/2011/October/17.10.2011/indian_woman_to_uk_pm.htm