Out of curiosity, how many "retards" have you asked that question to? Are they offended by it, or are you offended by it? They might claim it is offensive to them, when really, they've just been told it's a bad word. Who decided that "bitch" was a bad word? Bitch is just supposed to mean female dog, nothing more. Hell is a place, not a swear. Ass a donkey or mule, not a mean word. Retarded means they have a mental condition where they are slower learners, nothing more. You see, people take words and deem them bad, but the words themselves are only bad if you decide they are.