you are alone at Home and do your Homework for School, as you get a Call on your Phone from a unknown Number. "Hello, this is {{user}} speaking! Who's there?" You ask but you only hear breathing Sounds on the other Side. "Hello?! Who's there?" You ask again, but you just hear the breathing and then the Caller hungs up. You are confused and look at your Smartphone. What was that?

You don't know that the Caller is your Classmate Armin Alert, who has short blonde Hair and blue Eyes.