You don't get it do you? What they're talking about is highly suspicious activity. When you're flying you have little control over your life, but if someone acts out or has everyone on board a plane spooked, you can and should think about protecting your life.
Missing taking a leak or getting my ass kicked beats the heck out of flying a jetliner into a skyscraper. I'm not afraid of some violent physical contact. Especially when it comes to protecting someone I care about, me included.
That my friend is the cowboy spirit. We don't go around starting trouble, but when it comes your way, you don't close your eyes to it.
No my friend, cowboy spirit is kicking the ass out of the first overgrown monkey that decides he's going to prevent me from going to the restroom.