As a close family member of someone with Down's syndrome, I have to say that I am disappointed with some of the responses on this thread. I'm sure that I'll probably be slammed for this, but I am somewhat confused (though I did get
almost a 30 on my ACT, and I also have a Master's degree -- so it's not for lack of intelligence

).
I understand that calling people "fat" or "stupid," for example, can be offensive. Personally, as someone who is more overweight than I would like to be, in addition to also being blonde, I often find myself in situations where I can be easily offended. However, I am able to defend myself (if I so choose).
My family member, however, is not capable of speaking up for or defending herself. Although, from what I gather from some of these posts, this is just fine. We loved ones are only making things worse for her by trying to protect her from being hurt by thoughtless people who use her genetic abnormality as a way of insulting others.
Seriously?
Please don't insult this sweet girl even more by placing her on the same level as a s***. I agree that the "r" word and the "s" word can both be considered offensive, and the usage of both (specifically in the classroom) should be dealt with APPROPRIATELY, but not necessarily EQUALLY. Can you seriously tell me that my family member's GIVEN way of life equates with the CHOSEN way of life of another?
I'm sorry (not really), but my family member did not "decide" to become "********"
sick: I cringe at the sight/sound of this word). On the other hand, a s*** was not born that way -- (s)he made decisions that made her/him to become considered in that way. Plus, I assume that just because someone acts promiscuously at some point in their life, they are not confined to a life of promiscuity. Likewise, people who are overweight (or even blonde) have the opportunity to change themselves if they feel so inclined.
Though the use of each of these "conditions" as a means to insult could be potentially disparaging, they are not equal. If I discovered that a teacher did NOT give preferential treatment towards the emotional impact of such insults on my family member (or any other person with an unavoidable "condition"), THEN I would be livid!
Yes, teachers should instruct their students on the inappropriateness of such words, but please don't punish them equally.
BTW - Since this was also mentioned previously, I suppose that I should mention that I do realize that race is not a chosen way of life as well, but I can't say that I have ever seen racial slurs being thrown around in such an (apparently) accepted manner as the "r" word. Neither of these are appropriate!
So, please, don't approve of someone insulting my family member by using the "r" word to insult others. By accepting this, you are just as guilty as doing it.
Oh, and I'm sorry if any s***s were offended by my post. You made the decision to live this way (whether you are happy or not), but you also have the potential to change -- a luxury my family member does not have.