Probably one of our wonderful moderators, who keep us from flaming one another!

As someone who has spent most of my life in the field of developmental disabilities, I want to add that you have no idea how likely you are to insult someone with such a term. It's difficult to find a family who does not have any member who would be offended by the term "retard". This tends to go beyond the somewhat laughable and trendy designation of "unpc".

Kay, sister of a very beloved "retard"