A: Some people have good noses.
B: I wish I had a good nose. Mine is way too big.
A: I don't mean good-looking. I mean good-smelling.
B: Oh. But that can be a curse.
A: Yes, because you can be too sensitive to odors.
B: I'll say. My girlfriend has a nose like a drug dog.
A: Did she catch you using drugs?
B: Sort of. She knows whenever I sneak a cigarette.
A: You don't need a good nose for that. Cigarettes stink.
B: But when I sneak just one cigarette in the morning, she can smell it that evening!
A: Boy, that is a good nose.
B: I told her she should apply for a job at customs.