I'm one of the instructors of karate to adults with learning disabilities. For Halloween yesterday, we wrote lots of activities on cards, & the students got to "trick or treat" a card then do the kicks or punches or situps written on it. It was so much fun that I'm not sure they realized how hard they were working. Even Nidaime got in on the fun. He pulled the card that told him to "count from 1 to 10 in Japanese." When he made a(n intentional, of course) mistake halfway through, the students yelled. I said, Help him! & they all counted the rest of the way together. I appreciated him playing along.