There are several possible approaches to take in addressing hostile and intimidating behavior.
Student workers are often in very precarious situations with little to no institutional power/influence. According to AAU survey results Graduate Students sometimes experience HIB and sexual harassment from faculty members. If you are a student who is experiencing HIB, you are entitled to support as a university employee through the Ombuds office, the Dean of Students office, and (if a grad student) the Graduate School. Graduate student workers should also consult with Graduate Coordinators and/or the Graduate School.