What makes a difficult PL?

Not all money is good money, i've heard a stripper say to me when she talked about a certain PL she tried to avoid. This was at a club that had an open communal lap dance area and we witnessed a middle aged Latino PL spend the entire dance grabbing a girl by her hips as she straddled him cowgirl and hard humping/thrusting her quite loudly, almost violently. I'm surprised the bouncers didn't stop him, but technically he and the girl weren't breaking any "rules". He supposedly spent a decent amount of money for his "thing", but no one familiar with him wanted to dance with him.

At the same club many months later, as i was leaving the chump station with another veteran favorite, a middle aged South Asian (i don't want to assume Indian even if very likely) standing by the exit motioned to her as if he wanted to take her back right away. I almost did a rookie move and pass her down to him to "help her out", but she just gave me one look and i knew no. When we went back to the table, she clearly explained she wasn't about to dance with him as she had clearly generalized/stereotyped that group as being very cheap but very grabby and sucky, pun intended. She'd rather do no dance than what she assumed she would do with him.

Now you might think this discussion is veering toward racial biases, but i'm just giving two different examples that happen to involve certain ethnic groups. Another difficult PL could be the needy or emotionally draining PL, the one that needs a lot of time to air dirty laundry or shit all over a stripper's lawn. Even if they are paying for it, it's not at all enjoyable or an efficient experience for the girl. Of course, there are other types as well. Maybe PLs that are always pushing for things beyond the dancer's comfort level (extras or OTC or LDK even) or whatever.

Obviously i don't consider myself a difficult PL. Don't require a lot of time or small talk to start having "fun". Not needy in the sense of having to talk to a stripper about "anything" (although i can definitely hold a conversation or just listen) or even having to have any type of a "relationship" with her beyond the dancer/client services ITC. Generally do fairly lengthy sessions with my preferred/favorite dancers so none of that frenzied get-all-the-mileage-you-can-get-in-one-dance bit. So as long as she continues to do what i like (and i do like very high mileage), i should be an easy regular source of decent money for her in a relatively short amount of time.

Now, i have been told more than once, not often, but enough to remember, "You made me work" or something to that effect. It didn't seem like she was really physically exerting herself, but it made me wonder if dances takes a lot more energy than it seems. Often, she even seemed quite relaxed much of the time. Although, occasionally, girls do build up a bit or quite a bit of a sweat. I guess for most girls, it is really work for them even if they try not to make it look that way. So there could be an entire element at work there that i don't see.