No one said it was rocket science Bino. All we said was that it wasn't as easy as you might think.
I guess maybe I was an odd sort of trainer in that I would specifically WANT to train all the people that the rest of the trainers couldn't handle. All of the "extreme" cases that I mention were my average client. So when I rattle off all the different types of clients with all the limitations it's because those people were who I regularly trained.
I had clients with learning disabilities as well as nuerological issues, MS, wierd dietary restrictions due to disease, morbid obesity, all sorts of injuries in addition to the everynowandthen bored hausfrau and guy who is approaching middle age, excollege athlete who developed a tire around his midsection and wanted to try to go a little bit back in time.
Not to mention that Mr Strap is right in that if you suddenly get a couch potatoe moving OF COURSE they will get some sort of result. But the body quickly adjusts. So what do you do to keep them progressing?... keep re-upping with you? How would you know if they are losing bf and not muslce mass? How would you track their progress, keep them motivated and sticking to their goals?