A little boy wants his toy, so he walks up to his mother and says "Mom, give me my toy." His mother responds by saying, "What are the magic words?" So the little boy says the magic words and his mom gives him his toy.
The next day, the little boy starts kindergarten. At snack time, the little boy wants some juice, so he walks up to his teacher and asks for a juice box. The teacher says "What are the magic words?" So the little boy says the magic words. But the teacher gets upset, and calls the little boy's mother and asks her to come in.
When the three of them are sitting in the room together, the teacher asks the mother; "Have you been teaching your son sarcasm?"
"No," the mother says, "Why, what did he do?"
"Well, he asked for a juicebox," said the teacher, "and I asked him to say the magic words, and instead of saying please, he said 'you're thin and you're beautiful.'"