I still owe a duty of loyalty to my clients and former clients, so I cannot specify which clients I did not especially find congenial, but the cause was the same.
So when I write characters and situations and relationships, I try to sort of utilize what I know about the world, limited as it is, and what I hear from my friends and see with my relatives.
Once you have heard a strange audience burst into laughter at a film you directed, you realize what the word joy is all about.