MOST, not all, groomers do have a sign posted that a fee will be imposed if the dog is difficult. Usually, if it is the first time you are seeing that groomer, they will tell you after the grooming that your dog was difficult and because of such, they will have to impose a fee on you the next time, because it will take extra time or an extra set of hands to groom your dog. A reputable groomer will let you know after the first time -- you can't believe the number of people who will tell you that their little angel would never turn into a nightmare on the table. We took to videotaping the dogs whose owners did not believe us. We'd show them their little sweetum turn into Cujo on the table -- I had one woman who refused to believe us - said she was taking her business elsewhere -- we jumped up and down for joy -- 2 months later, we had heard from no less than 4 other groomers in the area, all of whom refused to even do anything with this dog -- it was so awful. She sheepishly came back to our shop and offered us 4 times what we normally charged because no one else would so much as pick up a brush anywhere near this monster. It took 2 of us to do the dog - since it was the owner and me, and she was a great boss, she took the normal charge for the dog and put it into the business, the extra the owner paid, she and I split. We went so far as to have a bite glove in order to handle this nasty little cocker spaniel.