When cheating on a quiz, make sure that the teacher has not provided multiple versions with entirely different questions and answers. Having all the right answers to all the wrong questions can be deeply embarrassing. Crossing out the wrong answers copied from one student so you can substitute the right answers copied from another is nearly as bad, if you fail to cover your tracks and the copied wrong answers are still legible. Worst of all is when you cross out the right answers and substitute the wrong ones because you haven't learned enough to be able to tell which set of answers was worth copying.