Again? Well, that sort of thing will happen to you when you hang out with the likes of David Carradine.
I personally would never have shook David Carradine's hand without rubber gloves, an apron and a respirator but it just goes to show how gutsy Jack LaLanne really was. It looks like he put his coat on inside out this night. Senility maybe? Or maybe his good buddy Carradine here had already thrown up on him earlier.