That saying from the Star Wars movie is embedded in our memories (if you are a Star Wars fan anyway) and it is so true in so many ways! In the movie it was a warning that the Wookie was going to get his way or you would be sorry. In real life it is a warning to "Choose your battles wisely".
I am not one to let a dog get away with a lot of shenanigans on the grooming table. I like a well mannered dog as much as the next person, and I prefer that to fighting with a dog, but I have watched way too many groomers get absolutely frustrated until they are frazzled with dogs trying to make them do something they want the dog to do but the dog is DETERMINED not to do.
The dog wants to sit instead of stand and the groomer is constantly trying to make the sitter stand up. The dog wants to look towards the opposite side of the table than you want him to. The dog is trying to lay upside down when you brush or trim toenails. We all have these dogs that are aggravating and yet dealing with them is really not all that hard, yet I see experienced groomers fight to deal with them every day. Since time is money, it makes sense to not fight the dogs too much if you can avoid it. The time you spent trying to make the dog do what you wanted, when it is easy enough to work around the behavior, is time wasted. You could just work around what the dog is trying to do and get finished faster, which enables you to get more dogs groomed. It also reduces YOUR stress level as well as that of the dog.
Some of these things are actually easy to work around if you just "let the wookie win".
What do I mean by that? Do I mean, let the dog do what it wants to regardless of what I need it to do? Of course not! I simply mean that sometimes it is better to work with the dog, not against them.
If a dog wants to look a different way than you want him to look, move to the other side of the table. Usually in here that works. If your table is towards a wall, pull it out slightly and that will enable you to move around it easier. If you are mobile, then you will have fewer options,but minimizing the view of the dog will generally keep them from looking all over the place as well, so curtains and blinds are a definite plus. If they cannot see the house they don't know which way to look! It is really a lot easier to reposition yourself than to pull and tug and fight a dog that is determined to do things his way.
If a dog wants to constantly sit down, standing him up over and over will wear you out- not to mention frustrate the heck out of you- and make the groom take three or four times as long as it should. Usually a simple loop around the dog's middle is all it takes to keep that dog standing up. I know, it sounds simple, but many of the groomers I have worked with over the years fail to do this simple thing.
A couple of tricks to making the two loops work (especially if the dog is a spinner as well) is to loop one though the latch part of the loop at the swivel point, not to the arm. That way the two loops don't get twisted and tangled up. I use two different lengths of loop as well. A shorter one for the neck and a longer one for the middle.The Groomer's Helper also has a professional set that provides a "no sit" bar as an option. If the dog has a Trachea or Larynx issue, or is really pushing hard on the neck loop, you can move it slightly, placing the loop behind one leg. That takes pressure off the throat and keeps them standing as well. These simple tricks can eliminate a great deal of frustration.
Sometimes however, a dog wants to do what it wants to do. I always try to make it work.
Using two arms, one on either end of the table, makes it even easier for me to keep a dog still and pointing the way I want them to. When the rear and neck loops are in place with two arms the dog cannot move, twist, turn or lay down. this is a perfect solution for me.
If the second loop doesn't work, and the dog is struggling against it or upsetting themselves fighting it, then by all means, let the dog lay down when it is possible! It isn't going to hurt anything to have the dog laying down to have its back worked on, or sit down while working on back, front legs or head. Letting them sit will make the dog more comfortable and the happier they are the easier it is to groom them. Many dogs will even roll over for you to work on the other side. Choosing to allow the dog to be comfortable is key in many cases to a stress free groom for groomer and pet.

This dog was not going to stand up for love nor money, so we groomed her by rolling her around on the table. She is still this way three years later. Mom said we are the only shop to ever get her groomed.
I have dogs that were trained to lay down when being brushed or when having their toenails trimmed. This is a great idea for dogs that are coated or that have leg, back, hip or foot problems. However, if you do not expect the dog to lay down you can be in for a surprise when they will not stand up! I have a pair of Pomeranians that come in here that had an invalid owner who brushed them in her bed on their sides. You will not get them to stand up and the bathers all have to learn to deal with it. It aggravated one of my previous bathers so much that he refused to dry them. This solution is easy! Let them lay down and turn them on their other side when you are finished with the one you are working on. Its usually easy enough to do and actually it is faster to dry and brush out a dog with it on its side, because you can get to its underside easier.
Large dogs that will lay on their side will have less stress on their joints as well. During nail clipping it can be incredibly uncomfortable or even painful for a dog to stand on three legs. If they are overweight or older this pain can make them miserable and cause them to struggle more than they should. Allowing them to sit, and doing the front nails in this position, many times not even lifting the foot off the table , can be a helpful trick. If they will lay down, it's even better! My Wheaten likes to lay down for his nails. Always has. He will literally hang like a trapeze artist if you try to trim them with him standing.
There are other areas as well that letting them win can be beneficial. Drying faces with a force dryer, even on low can be stressful for many dogs. For those dogs I towel dry as much as possible, comb the head and ears the direction I wish it to lay and use a fan to dry their heads the rest of the way. Some of these dogs respond well to a human hair dryer or stand dryer. It is just not worth stressing out a dog to dry them.
Older dogs will sometimes react to the dryers in seizure type activity. they start screaming and seem to lose touch with reality. That is a type of seizure. Those dogs we do not even attempt to dry with a force dryer, we cage dry using a fan. We advise the owners that the dog hates being dried correctly and that the groom quality may suffer, but the dogs health is first and foremost in our minds. I have yet to have an owner fail to understand that.
Ear plucking is another thing that stresses dogs out. That is one reason I do not offer this except in rare occasions. It is simply not worth a dog hating me or hating the grooming process over a little hair. I clipper it out or scissor it out and call it done.
I don't want anyone to think I am a pushover, or that I do not believe in basic grooming manners, because that is not it at all! I expect and teach my dogs to behave in a reasonable manner, but sometimes, a dog wants to do something unexpected or bothersome and you have to decide, am I going to fight this epic battle or "Let the Wookie win"? In many cases the battle is not as important as the war and giving the dog the illusion that they "won" makes the groomer and the dog know they BOTH won.
So, go on! Let the Wookie win (sometimes)! And may the force stay strong in all of you! (My son made me put that in!)