[Potironette]

Luck saw Rune get up and leave as the bell rang. Yep, definitely angry. Luck got up himself. When a teacher's authority was challenged by one person, and the teacher was generally disliked, students generally could care less about respecting the teacher.
As he thought, everyone else got up and a hurry and left.
The teacher looked rather red with fury.
Luck exited the door, after Rune. He had history class next.