LOL, not Gracie Allen, but thinking about it, she had a lot of her attributes! My dad was pretty longsuffering about it in a way, not that he didn't have a sense of humor, he was just not as outgoing as my mom was, and believed in acting with a certain sense of decorum. Dad has since loosened up quite a bit, and is quite a funny man himself.
Sounds like your Dad is enjoying himself more. Good to hear it.