The Curious Incident of the Dog in the Night-Time
People say that you always have to tell the truth. But they do not mean this because you are not allowed to tell old people that they are old and you are not allowed to tell people if they smell funny or if a grown-up has made a fart. And you are not allowed to say, "I don't like you," unless that person has been horrible to you. (73.2)
And I am going to finish this chapter with two interesting facts about Sherlock Holmes. (107.22)
And she said, "Are you telling the truth, Christopher?"
And then I said, "I always tell the truth."
And she said, "I know you do, Christopher. But sometimes we get sad about things and we don't like to tell other people that we are sad about them." (109.10-12)