"Knee Karate"

I had a rather odd dream last night. Apparently, I was participating in some weird hybrid martial arts class that featured a unique method of attack. From what I can remember, it involved very high jumping and random attempts to pummel your opponent with your knees. I cannot remember the finer points of this technique, and I'm not sure what my arms were doing other than helping me keep balance. However, I think with a little creative marketing ,this could become the latest exercise craze. (I'm certain it would provide a great cardio workout.)

If anyone out there would like to assist me in producing an infomercial pitching this remarkable system, let me know and we'll do lunch.