I might have made someone lose their job
Why do you think you made someone lose their job?
I think I was a bad student and hurt my teacher.
You should never cause someone to lose their job. This could ruin this person's life.
It's not that big of a deal. Teachers are overpaid anyways.
Teachers are not overpaid and they need the money to pay their bills. It is awful to do something to make them lose their job.