How does Shen get kung fu?

Well he was/is rich so I guess the upper class folks must receive some sort of training to protect themselves.

या he learned it himself while he was in exile.

I don't think this needs an answer. Then again, it is Kung Fu Panda, so I guess sometimes we all need to ask ourselves something. Seeing how Lord Shen was a spoiled little rich prince he was अगला in line to rule, I'm pretty sure he must of had some kind of trainer around. But then where did the henchmen भेड़िया came from?