Dave’s in his backyard when he sees his new neighbor over the fence. He strikes up a conversation with his new neighbor.
Dave: So neighbor, what do you do for work?
Neighbor: I’m a professional Deducer.
Dave: A Professional Deducer? What’s that?
Neighbor: It’s hard to explain, it’s easier if I show you, watch…
The neighbor looks around Dave’s backyard and spots a doghouse in the corner.
Neighbor: I see you have a doghouse over there.
Neighbor: From that I deduce you have a dog.
Dave: Well, ya.
Neighbor: From that I deduce you have children to play with that dog.
Neighbor: Because you have children, I deduce that you have a wife.
Neighbor: From the wife I deduce that you are a heterosexual man.
Dave: Yes! That’s really neat how you were able to do that from just the dog house!
The next day Dave is telling a co-worker about his new neighbor’s profession.
Co-worker: Professional Deducer? What’s that?
Dave: It’s actually easier if I give you an example.
Dave: Do you have a doghouse?