 I don't think he liked to improvise. No, it's a good point. I think it was Art Carney would react with his improv. He thought that rehearsal would make everything stale. He wanted to be fresh. Although he was a magnificent actor, he wasn't a trained actor. Art Carney is a trained actor. You got a line, you got to make it fresh each time. Gleason was worried he couldn't make it fresh each time. Frank Sinatra was the same way.