Many times these guys live in pretty poor conditions, so the opportunity to spend a night in a nice place is to be welcomed.I can't blame them for trying. As long as we have had a good time and they do not want to be paid for the overnight, why not?
In Thailand I once offed a guy who was crushed when I sent him home after a short session. He had expected to spend the night despite a short time charge.I learned that he slept on the floor of the bar where I offed him, and had to face his colleagues who thought he had scored a better place to sleep. I felt awful when I learned this.