To extrapolate expectatations of RE early 90s price behaviors to post GFC could be wishful thinking for some LA areas.

If you only care about maximizing profits, at the expense of the tenants livelihood (essentially) this will reflect in the behavior and turnover of the tenant. 

I wrote their landlord about the tenant’s bad behavior.

That is NOT a landlord/tenant relationship.I'd suggest you enforce your agreement, lay down the law, have him change his behavior (not likely), or get rid of this tenant.  

From the guy screaming at the workers to the workers being subject to the screaming, both are indirectly accepting "their roles" and stretching the amount of craziness they can put up with.Consider this, for most people television is a powerful idea, just grab a camera, get as few friends as "crew" and you will se how people change their behavior, for good or for worst.

I'm not condoning his behavior, but invariably everyone has SOMETHING in their background that you don't agree with, and it doesn't necessarily make them a bad person or untrustworthy. 

Compensation drives behavior.

Although his sociopath behavior sometimes drove me nuts, he made me understand the difference between being a "hobby landlord" and a "business owner".

I can't see how anyone would argue this is poor behavior or unethical.

I've read so many posts on here regarding 'bribing' tenants to be good or rewarding them for their good behavior.