In an exam, a student was caught cheating, and the teacher told him: if you do n’t want to be caught, do n’t do stupid things,. What does the following sentence mean differently? ['If you do stupid things, you need to be prepared to be caught.', 'Avoid getting caught unless you do stupid things.', "Either get caught or don't do stupid things.", 'People who get caught doing stupid things often have bad luck.']