Did not hear about this until this morning when it was mentioned on the Dan Patrick Show. They showed a Utube video on the Johnny Carson show with Frank Sinatra and Rickles. Sinatra was telling a story about what Rickles did to him at a restaurant. Rickles didn't say a thing in the segment but the story was hilarious.
I remember Rickles coming on Carson and just completely taking over the show. You could see Carson just sit back and enjoy it. That was part of Carson's genius.
Gene