I advise you to use the phrases :
"I feel bullied"/ "I feel harassed"…. reporting it to HR. I know, I know, HR is NOT there for you. However, you must have a file on record of your examples and how it makes you feel for you to state a claim later with EEOC or disability to make the company accountable. the company can do what they may, but let him know you reported this to HR (they'll tell him anyway) and you don't intend to deal with this type of treatment. If he chooses to continue, you will have to protect yourself. Put him on notice.
I did that. For me, it came to a screeching halt. I was scared, I knew the odds were stacked against me; but, the irrational behavior stopped. I was asked by my manager and HR why I did it. I said, because I'm well aware that if I make a claim later of unfair treatment, I need a record of this activity to protect myself. No record, no recourse. They know what that means.
Others suggested disability by getting diagnosed. I found it difficult to find a physician that sees adults in my area for mental care. I would have qualified too. Time has passed and there was no retribution and I definitely feel empowered. The manager chilled out and acted like nothing happened-wen onto the next victim. I hope you can tailor this experience to work for you, or at least it gives you confidence that you can stick up for yourself and survive.
Let us know how it goes. Sunday afternoon before working under these conditions are the worst 
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