Being a high school teacher is an incredibly difficult job, as teenagers are always trying to test their boundaries to see what they can get away with this. Knowing this, a former Marine Corps sergeant was nervous as he went into his first day as a high school teacher. Things went as he had feared they would at first, but then something unexpected happened that turned everything around for the rest of the school year.

The former Marine Corps sergeant took a job as a high school teacher, but right before the school year started, he unfortunately injured his back. This meant that he had to wear a cast around the upper part of his body that would remain hidden under his shirt, making it not noticeable.

On the first day of school, the former sergeant was assigned to the toughest students in the school. The punks were not stupid, and since they knew that he was a former Marine, he was aware that they would be testing his discipline in the classroom.

When he walked into the rowdy classroom on the first day, the former Marine Corps sergeant opened the window wide and sat down at his desk. Then, as a strong breeze made his tie start to flap, he grabbed a stapler and stapled the tie to his chest.

Needless to say, the room fell completely silent, and none of the students caused any trouble for the rest of the year. How perfect is that?! That just goes to show that you should NEVER mess with a U.S. Marine!