I am so very sorry you are having this problem. I am probably in the minority here, but I firmly believe that it is my responsibility to train my dog to quietly accept nail clipping and ear trimming. Even if I choose to use a groomer or vet it is not thier responsibility to train my dog unless I have contracted with them for training services.
Please understand this is a FIXABLE problem. Now is a good time to mention the 6 Yorkie "P"'s:
Patience,
Perserverence,
Persistence,
PRAISE,
pee and poop. In training you use the first four while avoiding the last two.
First of all think about it from Gabi's perspective. Her feet are her lifeline.... and dogs generally are very protective of their feet. Start by getting Gabi where she will sit in your lap, quietly and still. When you have accomplished this, then rub her back. When you can rub her back with her relaxed then rub her upper leg -- do not go any further down her leg that she is comfortable with -- if you think she might move her leg, then it is very important at this stage to quickly move your hand pack up towards her shoulder. The goal is to slowly work your way down her shoulder and leg until you can touch her foot -- just touch it no more. All along the way, PRAISE PRAISE PRAISE. You, the trainer, must perservere, be patient and persistent. When she needs to pee and poop, take a break
Work in short sessions and ALWAYS end a session with Gabi more relaxed than when you started the lesson. This tells you that she is comfortable with what you are doing and is learning.
When you get to the point where you can touch her foot, then pick it up, let go, pick it up let it go until she is completely and entirely relaxed. Then touch a toenail -- this is a turningpoint and may take some time but, continue be persistent, perserve, be patient and remember to PRAISE PRAISE PRAISE and always avoid pee and poop
This is how I train my puppies. Last night I clipped the teeny tiny ends off Chizzie's three 13 week old puppies with them sitting quietly in my lap. Sorry this post was so long, but this is a subject I happen to be passionate about.