Hey I'm a Marine. You know where our minds are when we aren't making bad guys cry uncle.
Hahaha, very true.
Man, I still remember my retired-Marine-turned-geometry-teacher in 10th grade. Wasn't the best teacher I ever had, but my attention never strayed!
One kid in the class, a real ass (who straightened out and is now a nuclear engineer on a sub!), would always goof off and sleep in class and such. Usually he would just get yelled at.
One day, the dude had his head lying on the desk, and started snoring. After saying his name twice, with no response, my teacher walked over to the kids desk (in the front row) and kicked the hell out of the bottom of it, right under his head. The sleeping guy's face went up, and then back down on the desk, really hard! I will never forget that!