http://today.reuters.com/news/articlenews.aspx?type=oddlyEnoughNews&storyid=2006 -04-22T002513Z_01_L21365906_RTRUKOC_0_US-BENJERRYS.xml
So it is OK for a popular drink to be named a Black and Tan. but not an icecream? I'm sure people have Black and Tans in Irish bars all the time and think nothing of it. But god forbid there be an ice cream with that name.
I have an irish heavy heritage by the way.