The contract upon which this action is based was made and was to be performed in the County of Los Angeles, State of California. That contract provides that the County of Los Angeles is the proper venue for any action arising out of the agreement.
Appearances aside, the verbally abusive individual is broken internally. The identity they present to the world, and often to themselves, is a facade. Abusers tend to have little or no clue that they have a problem.
Using profane, violent or vulgar language in the workplace is a form of misconduct. This includes inappropriate jokes and jesting. It doesn't matter if management exhibits the behavior or entry level employees. The workplace should maintain a professional vibe at all times. This means keeping the language professional.