Really glad to hear you are getting better, I know it takes a while, but when you can feel you are making progress it helps a lot.
Sorry to hear about the c*nt, err boss, I guess I know why he's being an ass, it's the sort of thing that could get him shut down, and as a drunken asshole, he won't find work again, or be able to build up a business, and he knows it. He's probably scared shiteless, and people like that (especially drunk ones) go on the offensive when threatened.
Chin up mate, life too short and doesn't contain enough guitars as it is (or Koch's apparently).