Shit happens. Specially when work depands that you work with people who have a life goal to prove how stupid they are.
I know you just thought of someone you know and even work with… just imagine when someone like that has a managers position. He has to take important decisions that might affect your personal work and/or reputation.
I had to deal with people like that recently and thank god they don’t have any authority on me.
What is worst than a stupid person is a one that cannot make his mind on what he wants and your goals depends on their decision…