Pedro was a very sentimental child with very fragile feelings, but he loved to lie, one day during a family dinner his mother said to him: Pedro, if you are going to lie, it is short because if not the monster of lies will come for you.
Pedro mockingly replied: Good try, mama, I do not believe in that.
After a couple of days Pedro lied to his mother telling him that he had excelled in his grade exam when he actually failed him. That night while he slept a cat had lied in his room and he had not noticed, during the course of the night he heard noises in his closet, then he felt something was on top of him and it was hard to fall asleep.
The next day his mother to see him tired for not having slept at all asks him: Pedrito what happens? Did not you sleep anything last night?
Pedro just looked at her and said: I lied about the exam breast and the monster of lies was in my room. Even though it was just a cat, from that day on, Pedrito never went back to lying