Top on my list was this boss who thinks he is better than every
single one in the company of about 100 people.
We will say "you decide" and then later come and harass you when
you are doing it halfway or when the project is completed.
Then with a sickening smile, he will say "How come like that,
cannot be...".
Even when he was wrong, he still made stupid remarks like "If you
think it is like that, then it is like that" and walk away with
another sickening smile.