Better play it cool like you said. You get up, feeling all your classmates' eyes on you. Hell with them! You're the All-American bad boy teenage protagonist. Let the whole school see you walk proudly into the principal's office with a satisfied smirk on your face.
You walk confidently down the hallways of the school. You are really moving along here. Almost like you're on a moving sidewalk. A train track would be more accurate, really.
A pang of fear flashes in your gut. The principal's office is on the other side of the school lobby. As you walk past the school mascot its giant beaver eyes seem to stare at you with pity. The hell with this, you're not going in the principal's office. The closer you get the more you can feel there's something wrong with it. The door is closed but there's something wrong with it. You better not. Better just skip out. Let the truancy officer find you, better yet hitchhike far away from here. You take a few more steps and your hand is on the doorknob.
Why can't you stop?
You open the door and step in. You feel the floor come out from under you as you see that you were right. There's something very wrong with the principal's office.
The End.