The man doesn’t seem to be fully mentally well, but apparently he does his job diligently, has no inclination towards being violent, doesn’t do drugs, and keeps his problems mostly to himself.
That said, he has an extreme gambling addiction (he blows all his paychecks at casinos) and having seen his room once, it looked and smelled like a biohazard disaster.
He seems like a poor fellow that had some bad luck and now lives to just gamble the rest of his life away.
I give my uncle in law huge respect for taking this guy in, and also my aunt in law for also putting up with him living in their home. I don’t think my wife or I could have done the same.
The two of them are workaholics though and their home is just a space for them to sleep between work shifts at their restaurant. Which is why I don’t think they care too much about this man’s room’s condition.