In 'Going My Way' what activity did Father Fitzgibbons learn?

I don't have the answer you're looking for. But, a little fun trivia. In the end of the film, Fr. Chuck O'Malley (Bing Crosby), is supposed to present Fr. Fitzgibbon (Barry Fitzgerald), his mother, played by an actress. A surprise for the audience as well as Barry, it was his real mother whom he hadn't seen in many years. Crosby took it upon himself to bring her over from Ireland and surprise her famous son on the set with camera's rolling! (teary eyed me? get's me every time).

http//:us.imdb.com/title/tt0036872/trivia

Yay! I know this one (or at least I think I do). Golf!

Gatsby, certainly your "Yay" will have to come from CountryAngel. But I'll quote a line from Fr. Fitzgibbons, " A golf course is nothing but a poolroom moved outdoors."