One day, you were walking near the school during recess, but suddenly someone threw an empty bottle down the window and it hit your head.

When you looked up you saw your enemy. He was at the window of the 3rd floor. You looked at him angrily and shouted, "Watch out! there's such a thing as a trash can!"

When you said this, he got angry and you argued for two minutes. then your enemy spoke.

"Wait there! I'm coming down!"

You saw him walk away from the window.