A: I want to be a mail carrier when I grow up.
B: Why?
A: Because you get to meet a lot of people.
B: You sure do.
A: And you get a lot of exercise every day.
B: That's the truth.
A: And you get to play with a lot of dogs.
B: Well, you're supposed to be working.
A: Yes, but I will always pet the friendly dogs.
B: What about the unfriendly dogs?
A: I think if you are friendly to dogs, they are friendly to you.
B: Dogs are like people. Not all of them are friendly.
