stop making stuff up

Really. don't live in imaginaryville. That's when you do something that you probably shouldn't have done. You get caught. You claim you didn't do anything. Let's picture this scene, played hundreds of times in middle schools around the country...
teacher: ok class, take out your book and turn to page 95.
you: take brand new yellow pencil and karate chop it into bits.
teacher: what was that?
you: nothing.
teacher: I see broken pencil bits all over your desk and the floor.
you: I didnt do it. that was here before.
teacher: Are you kidding me? I just heard the pencil get karate chopped. It was your hand chopping. Look, there are bits on your leg.
you: no, they must have fallen off the desk because I didn't do anything.
teacher: Stop acting like you didn't break that brand new pencil because you did it!!
you: what pencil?
other kids: ha ha ha ha
teacher: GGGRRRR I'm getting really upset with your behavior. clean up that mess and turn to page 95 right now.
you: I don't want to get splinters.
This scene can go on and on for a long time.
I call it living in imaginaryville. You know that you chopped the pencil. Everyone in the room knows you chopped the pencil. It takes a lot of patience for a teacher to listen to your LIES without wanting to put you in a sleeper hold so you stop talking and interrupting the lesson on page 95. Part of growing up is telling the truth about stupid stuff you did. Accept the consequences. Clean up the pencil bits. Turn to the page in your book and stop torturing the teacher.