Best First Day of School Story

This one is dedicated to all who ever taught school, parented
children, or served their country.

A former Sergeant, having served his time with the Marine Corps, took a
new job as a school teacher, but just before the school year started, he
injured his back. He was required to wear a plaster cast around the upper
part of his body. Fortunately, the cast fit under his shirt and wasn't even
noticeable.
On the first day of class, he found himself assigned to the toughest
students in the school. The smart mouthed punks, having already heard the
new teacher was a former Marine, were leery of him and decided to see how
tough he really was, before trying any pranks.
Walking confidently into the rowdy classroom, the new teacher opened
the window wide and sat down at his desk. When a strong breeze made his tie
flap, he picked up a stapler and promptly stapled the tie to his chest.
There was dead silence. He had no trouble with discipline that year.