A former Sergeant in the Marine Corps took a new job as a high school teacher. Just before the school year started, he injured his back and was required to wear a plaster cast around the upper part of his body. Fortunately, the cast fit under his shirt and wasn't noticeable. On the first day of class, he found himself assigned to the toughest students in the school. The smart-alack punks, having already heard the new teacher was a former Marine, were ready to test his discipline in the classroom. They were particularly sully with feet on desks, leaning back in chairs, and sour looks as he entered the classroom. Walking confidently across the room, the new teacher opened the window wide turned, walked over to his desk, and turned toward the students. He didn't say a word, but when a strong breeze made his tie flap, he grabbed up a stapler and banged three staples through the tie to his chest without flinching. Dead silence... The rest of the year went very smoothly.