All of your friends were gathered around your locker, laughing and teasing you about a love letter you'd recieved. It had no name on it other than yours, so you assumed you had a secret admirer.

You notice your friend, Mark, standing off to the side blushing slightly as his eyes were glued to the floor. This made you suspicious.

You asked him about the letters later that day.

"..What? What about the letters? I don't know anything about that.." He replied, his tone giving his lie away.