Markv,
It's interesting that you bring this up. My uncle used to run a lawnmower / rider / lawn tractor sales and repair business. He was very ethical about his business, even to the point of trying to talk customers into a less expensive model. (Yes, he wouldn't have been much of a used car salesman!) At any rate, he always said that he only worried about getting paid by doctors and lawyers. Of course, there were notable exceptions, but most of his delinquent bills were owed by doctors and lawyers who felt that there was nothing he could do about it. They were basically right. At that point he didn't trust lawyers, so he would not have thought of going to one for help. So, you can see that this is not an unusual practice for a certain class of lawyer. From what his son (who now runs the business) says, the practice is getting a bit more unusual, but still exists.
Mike