What is Frank’s hobby?

W: Frank, what’s your hobby?
M: I don’t really have one. I suppose bowling is the closest thing to a hobby I have.
W: How about the other people in your family?
M: Well, my son likes collecting stamps and my wife has a garden. She spends an hour or so every day working in it. How about you?
W: I have several hobbies but collecting coins is the One I like best. I have coins from almost every country. My favorite one is from China.
M: Have you ever been to China?
W: I want to someday. So far I’ve been to Canada, Mexico and Japan. I like traveling. Why don’t you have a real hobby? Are you lazy?
M: I like bowling but it’s kind of expensive. The real reason I don’t have a hobby is that I don’t have the time.
W: Oh, come on. Frank, you aren’t that busy, are you?
M: Yes. I am. There just don’t seem to be enough hours in the day. Being a traveling salesman  is harder than you think, Sue. You know last week i was in Washington and before that in New York. And next week I have to go to Chicago.
W: It does sound like you are pretty busy. I guess it’s better just to stay here in the office. At least I get to go home at 5:00 every night.
M: That’s a lot better than 9:30 or 10:00 or sometimes even midnight.