At university, John, your enemy, passed out birthday party invitations to almost everyone. He handed you one with an arrogant look. He was popular so he was confident they'll just come.

You got one too. You just wanted to come to make fun of him...and enjoy free food.

That evening, you prepared yourself. You arrive at his door, but you noticed there was no sound. No music. No shouting crowd... Despite that, you knocked. When the door opens, you see him, a depressed look on his face. He looks at you and starts to tear up.

No one else came...except you.