Have just read throught the entire post and have to agree with different sides of this thread.
I fly quite often and am guilty of thinking 'Another safety dem argghhh' however I do pay attention. As I am a saddo who gets to the airport early simply to try and bag a seat with a little extra room being the upper side of 6' tall I also familiarise myself with how the doors open.
What annoys me most is the bored look on the faces of the CC who also nod messages between each other whilst in the midst of their demonstration there is little wonder that passengers ignore them when they hardly seem interested themselves.