we will always meet someone who is a piece of sht

I am serious shocked after i went into this sht college because i meet too many elder people who don't know what is the best for our students. They always complain about how tired they are and how sacrificing they are for us. They can think all kinds of mean things for us to do and take and they don't care whether it is really helpful for us or not. They just follow their own conveniences for checking our tests. They jus think that they have the right to command any kind of useless and time-wasting things for us to do just because they have the right to make us reread this course.