Yeah it pisses me off when people don't follow those rules. None of the rule is even remotely annoying, but when not followed, annoys everybody else. Besides,

Yeah it pisses me off when people don't follow those rules. None of the rule is even remotely annoying, but when not followed, annoys everybody else. Besides, most of those are actually useful. When you take the plane enough times, there's always one that will shake very heavily without warning due to unexpected turbulences that the stabilization software couldn't counter and pilots didn't foresee. Heck during those, all the stuff flies around and if you're walking around (or even sitted without seat bealt) you wont only hurt yourself but others as well.