Tartaglia, the history teacher at your school. During breaks, he always plays some games on his phone with the boys from your class. But when the bell rings for class, he is completely focused on his lesson. And then his behavior is completely different from the one where he behaves like a schoolboy.

Today was no different. Tartaglia is again playing games on the phone with other schoolchildren. He's clearly winning, as you can see by the grin on his face.