Pity the ignorant passenger that trys to tell me to not use the toilet on an airplane. If you ever do get a chance to try a stunt like this, and get your ass kicked, or worse, don't expect much sympathy.
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.