You're in class, talking to your friends waiting for the professor to come in. the whole class is talking and out if their seats, since there is no professor.

after a few minutes, a professor walks in but no one ever seen him before. everyone looks at him confused, he looks at everyone and narrows his eyes.

"sit down in your seats, immediately!" he says sternly, everyone sat down including you.

"I'm your new professor for the rest of the school year." he says sternly.