The point being, people will make a donkey their father in times of need.
You just need to be critically useful, where the next party have no alternative other than you and the work is important. You can be rude all you want. As long as you play your cards right, they will smile and say 'thank you for your valuable guidance, sir' at the end.
Not that I promote rudeness. One should remain polite, until he can't.
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