What's Your Favorite Kind of Dog?

Me: What's your favorite kind of dog?
Mr. J-: I don't know (then walks off)

(A minute later, Mr. J- returns.)

Mr. J-: I like the kind of dog that doesn't smell like dog.
Me: (laughs) Really?
Mr. J-: Yea because my brother and dad are allergic to dog smell.
Me: Oh okay. I just thought that you didn't like stinky dogs. What kind of dog doesn't smell like dog?
Mr. J-: I don't know. I just saw one once.