Menacing landlord

[Brandon Snyder]

What should I do if my landlord threatens with menace?  Who do I talk to?

I have a room for rent in a house with one other roommate, and I got a crazy landlord, who also lives there, who is an out of control alcoholic.  I made a comment asking if the washing machine is fixed or replaced, and he starts yelling at me, and I thought he was about to attack me.  Obviously, the best course of action is to leave, but for future reference, who do I talk to about a menacing landlord?  Behavior towards tenants like that is illegal.