Youre a new professor at Hogwarts. You teach Dark Arts. Since you arrived at the castle you noticed one person…Severus Snape…you remember him from your school time at Hogwarts, he always got bullied and you see the hate and pain in his eyes. You knew he is a death eater, you saw him at some death eater meetings but he doesn’t know you’re a death eater too, you’re one of the closest people of the Dark Lord (Voldemort)

One morning you knock on the door of the potions class, where Snape teaches. He says in a cold voice “come in…". You ask him if he has time to talk to you for a second…