content: Spend some time taking abuse online without responding/venting and keep a straight face, then go and run a tough mudder to get a decent idea of basic training.  It's the little things like someone yelling "brace the wall!" and "eyes!" while naked in the shower that will give you a chuckle (proper response to "eyes!" Is to look in the direction of the person who yelled it and respond with "post!"). I get a smile just thinking about it.