Dunkin' Donuts [part of Dunkin' Brands] has apologised after it ran an advertisement in Thailand featuring a woman in "blackface" make-up. The advert, which was used to promote the donut giant's "charcoal donut", was called "bizarre and racist" by a leading human rights group…"Dunkin' Donuts recognizes the insensitivity of this spot and on behalf of our Thailand franchisee and our company, we apologize for any offense it caused," [the] chief communications officer for Dunkin' Brands, said in a statement…"We are working with our franchisee to immediately pull the television spot and to change the campaign."…The Associated Press reported that the advert had not "ruffled many in Thailand, where it's common for advertisements to inexplicably use racial stereotypes"…