It is for this exact reason that as a personal trainer, I only train people who are in good shape already that are looking to make improvements. I do not train people who are just starting to workout or have just started at the gym. Because I tend to like to push people beyond their limits, I would be a prime candidate to be sued by these lazy kind of people.....even though I do make them sign a waiver and covenant not to sue. So I stick with training quality fairly athletic people who have been working out on their own for a while! So it's a very selective type process. I'd rather do a few quality training sessions per week than make a lot of cash doing several sessions a week with just anyone.