If someone on my plane mumbles "hi, Jack." I will strangle him with my own necktie.
We can't afford to play games with thousands of lives at stake.
Once you get on the ground, you can say anything you d@mn well please. I don't give a rip.
It's called "yelling 'FIRE!' in a crowded theatre.
ROTFLOL
My, aren't you the macho man!