"In fact I don't have a "Diploma in Dance" Joker. The applause I generate at dance clubs in China is all the proof I need that I am a good dancer. You seem to think that the only way a person can know anything or have any skills is to only have a piece of paper."

You dont necessarily need a skin to prove your expertise. Many people learn and hone their craft from experts in their respective fields. Are you a good skater?