Whilst i understand and appreciate that cabin crew do endure certain stresses that are entirely unique to their profession - they are still in the service industry - not the safety and security industry.
If you are incapable of treating someone with the least bit of respect then one would suggest that this is not the career for you. I've had some great crews who worked hard and provided service with a smile under the hardest conditions - but i cannot understand the ones who seem to go out of their way to make sure your trip is memorable for the wrong reasons.
I used to work in the service industry - and i shudder to think what would happen to my business if my chambermaids or waiters were treating customers like how cabin crew treat customers - i'd be out of business in a flash. I think that a lot of the airliners are now waking up to that reality.