The flight from Launceston to the big smoke was mildly pleasant - the other passengers were well-mannered.

But the return 90 minutes was hell.

Three men, supposed adults, were the most obnoxious I have ever experienced while flying interstate.

One of the men thought he was on centre stage at the Melbourne Comedy Festival - making crass in-house joke with his pals.

Another was a potty-mouthed racist that found it amusing by digging his knees in the rear of my seat - a bigot.

While the third thought it was necessary to consistently yawn and groan at fever pitch - it was like a bear or hippopotamus had boarded the flight from Taronga Zoo.

All three were loud enough for the whole plane to hear.

Thoughts were had about strangling the trio.

As well as that lot, there was the usual antics from other discourteous travellers.

Why is there a need for people to bust their way through? Wait your turn.

Why speak in a rude manner and tone that imply that other travellers are less important? Be polite.

Why recline your seat for a short flight on an economy airline so bad hair odour can whoosh up the squashed passenger behind's nostrils? Just rude.

Why rush to get your bag from the overhead locker when the doors aren't open? Calm your farm, you will get off in good time.

Other passengers pay the same fare to fly economy class, for the same rights as you.

Surely there is a certain aircraft etiquette called "common decorum" that people apply to any other aspect of society?

It's like it just disappears once they step into the airport.

Thank you for the unpleasant flight gentlemen.

Next time, consume some diazepam and think about how foolish and inconsiderate you look or sound before heading away for business or pleasure.

Others shouldn't be forced to tolerate your crap.

Thank goodness we weren't off to London.