Rude and uncooperative students in my classes.

Another thing that drives me crazy is people who like to insult people and make them feel small, then claim that they are only "telling it like it is." I've found that people who tell me they are brutally honest just take pride in the brutality - not the honesty.

hypocrisy is first thing that make me crazy !!! especially from someone who pretend being something good while he is a devil .

For example, if I see a man who is claiming that he is a patriot of his country, his city and after this he is throwing rabbish on the streets, spitting and so on. Such situation when people pretend they are someone else when they really are not.

denial!!! it is useless to deny something sooo obvious! it drives me crazy..