The end fight scene in Wheels on Meals between him and Jackie is still the best fighting scene ever filmed.
Read a story from Benny "The Jet" in Inside Kung Fu Mag 30-35 yrs ago, something like that. A former hermit who had spent many years practicing qigong and meditated alone in the mountains challenged The Jet on a fight. This guy had apparently built up a protective "qi field", or so he thought. The Jet says the guy started to walk around in the ring making circular movements with his hands. The Jet just went in with a kick, knocking him down. And that was the end of that fight.