- Have you any hobbies, Mr. Kirby?
- Business is my hobby.

5 seconds sound clip from the You Can't Take It with You (1939) classic radio play.

You can hear this line at 00:34:38 in the radio play.

Quote context

[...]

- Now, now, Miriam, it isn't as serious as all that.

- Well, perhaps it is not indigestion at all, Mr. Kirby. Perhaps it is stomach ulcers.

- Sit down, sit down, Mr. Kirby.

- Tell me, how do you find business conditions?

- Well, that depends on what side of the fence you're on.

- Oh, isn't this nice! A real chat!

- Have you any hobbies, Mr. Kirby?

- Business is my hobby.

- Tony told me you once raised orchids.

- That was a long time ago.

- Grandpa plays the harmonica.

- Oh, really?

- Yes. Ever played one?

- When Mr. Kirby was a boy, the harmonica was associated with street corner loafers.

- Oh, were they, Mother? Of course!

[...]