↓
In the laboratory, doing the experiment
Teacher: Okay, the fan has to go on ONE DIRECTION. And ONE DIRECTION only.
Me: ONE DIRECTION?
Teacher: Yes, ONE DIRECTION.
Me and my friend: Oh dear, she said ONE DIRECTION.
Teacher: What is up with the two of you? Why do you keep repeating ONE DIRECTION?
Me: We are just making sure that we heard you say ONE DIRECTION. So, the fan has to go only on ONE DIRECTION.
Teacher: Yes, ONE DIRECTION.
Friend: She said it again.
Teacher: What is up with ONE DIRECTION?
Me: It's the new marijuana, the new drugs.
Teacher: Your generation is totally insane ...
Me: For ONE DIRECTION.
Teacher: ...