The top two:
* the laziest intern ever!! He lived 100m from the office but was always late for the daily. Even managed to forget his fucking laptop at home!! His mommy had to wake him up!!! He was so useless that I thought he was on the first year of his bachelor's degree and later the team said to me that he had finished it.

* some frat bro, got an internship thanks to daddy inside my ops team. He managed to insult everyone in his first week!!
So I had to tell his daddy, that his son will work under the office support team and will be in charge of the first level support for his branch. Daddy fired his son sorry as after two weeks!!