I think the thing to remember (and I believe Rebecca covered most of these points) is that you HAVE to treat each case as individual! My youngest (who is 2.5 years at the mo') has Downs Syndrome with a heart defect. Her abilities are completely different to other children at the same age with DS - so you are unable to say - this person has DS therefore X, Y and Z will happen! She comes along every day my other two train and she is currently desperate to get on to the mats and participate! The head instructor is already looking forward to having her there! And we know that it help with her physically and mentally! (plus you grab a pair of focus pads she'll hit them!! ) But, as I said, you must remember to treat people on a person by person basis. Even within the Special Olympics there are problems with, for example, swimming categories! At the moment someone who is deaf but in excellent physical shape can compete in the same category as someone with DS who is, more than like, to have some degree of low muscle tone - not exactly fair even but it does show that it's important to treat each as an individual not a category.