I am one of those people that doesn't think there IS such a thing as an "all-positive" trainer. It just doesn't happen, even in us clicker-only people. I do NOT use positive punishment at all in my dealings with my dogs. Ever. I have learned, from experience, and from research, that it's simply not necessary, and everything else you need to do can be done via other means. I have not yet used R- in my training at all, as I haven't found a need, since most R- also requires and element of P+ to work, but I keep my mind open about it's use in very select few situations in which aversives were not applied.
MOST of what you would call "positive" trainers actually DO use punishment indeed! But they use negative punishment! And some use it a lot! Of course this does not involve any aversives being applied, if you know your OC terminology, but it's still punishment nonetheless! If you turn your back on a barking dog, it's negative punishment (IF the dog lessens the frequency of jumping). If you remove yourself from a room because of a bitey puppy, it's negative punishment (well, it is IF the puppy lessens the frequency of biting). If your dog wants to go for a walk and it won't sit at the door, you leave. That is negative punishment (IF the dog lessens the frequency of "not sitting" in the future). The point is, most of what people call "positive" trainers do indeed use punishment in a lot of their lives. It is, in some cases, unavoidable.
However, if you understand OC terms, you understand there is a BIG difference between negative punishment and positive punishment! And of course, whether a consequence is a punishment or not lies in the eyes of the dog, not the handler. I could turn my back on my dog all I like when she jumps, but if she keeps jumping she obviously doesn't find it punishing. I can jerk on the choke chain as much as a I want, but if the dog still continues the behaviour it's NOT a punisher - it's simply rough annoyance by handler.
And that's not to say that a negative punisher isn't aversive. Some negative punishments can be VERY aversive to a dog, depending on the dog and the situation. For dogs who crave, LIVE for, attention, including those dogs with behavioural issues such as separation anxiety, removing attention to try to lessen a behaviour can be very hard on a dog. Dogs face aversives in every day of their lives. However the type of stress often occurring is very different, and the fallout from negative punishment is not at all the same as the fallout from positive punishment. There are a lot more risks of side effects from P+ than there are from P-.
So yes, in my training I do use punishment - negative punishment. The extent to which I use it might be to remove attention from me, or to remove attention from another dog, or to remove opportunity for reward. However, depending on the situation I use a lot of extinction as well, along with Differential Reinforcement of Other Behaviour (DRO) and Differential Reinforcement of Incompatible behaviour (DRI).
Even NRM's can be very aversive to dogs. People call them NRM's, but what some people don't realize is that the DOG determines what effect that has on them, not the handler. I have a dog who will completely shut down upon the use of an NRM, and this happened earlier on in my training when I thought that "good" trainers use them. There are dogs who do not respond well to the use of NRM's, and it affects them much the same way as any positive punisher would. Now I realize that it's not the case at all, and I, and many others, do not use NRM's of any sort.
The part where "positive" (if you use the term) trainers draw the line is that they understand that they have no use for positive punishment, and often no use for R- either. That is, they do not believe that the answer to problems lies in force, pain, intimidation, etc. As well, a goal of a positive trainer is usually to do their best to use the LEAST amount of P- in their training, where other options are available (extinction, DRI, DRO, etc).
I have never physically corrected my dogs. I do not see a need, and I have much experience that tells me that, on a daily basis. I also don't believe in things like sticky tape, noisy cans, water pistols, tabasco sauce, etc. I have had great success in working with my dogs, and helping people with their dogs, using R+, P-, and extinction alone.
As for time-outs, again it depends on the context of the situation and how people view a time-out, how they define it. For me, I do not ever use the kennel as a punishment or a time-out place. I HAVE gotten up and walked away from a puppy, or stepped out of reach, or walked into another room and closed the door for 15-20 seconds as negative punishment. You could call this a time-out I suppose, if that's your definition. Or, if I know that a puppy is overtired, has gotten out of control (which some puppies can do so easily until they mature), and really needs a moment to calm itself down and rest, I might put the puppy on a tie-down or down for a nap in its kennel. But this in itself is not a time-out or a punishment, it's simply addressing the issue that the puppy needs to have time to calm down in a safe environment, for it is not yet old enough to have the self control that most new puppy owners often wish of it, and it is to meet the needs of the puppy is the puppy is acting the way it is from overstimulation or overtiredness (much like a two year old who acts out when overtired).
As for emergency, life or death situations - of course you do what you have to do, what needs to be done in that situation. Last weekend we had an awful, awful scare. Due to the power of human error, someone in our household had had one of our parrots out playing in the computer room. She put the bird on the playgym and went out to check on supper for a moment. Being the human that she is, she got onto a task and forgot about not putting the bird back in its cage. At the same time, we have a female that is in heat, so needs to be kept away from our boys. Therefore the dogs are separated at this time in the home. So some dogs go on into the computer room (which is the most-used room in the home, where people always are). It was only about 30 seconds before the mistake was realized, but you can imagine the kerfluffle of one 54 gram parrot, on the floor, in a room full of terriers. You can bet there were humans on the floor right there, flinging dogs aside this way and that to get to the bird. Long story short, we are very thankful that the bird is, three days later, alive and well, other than quite a few missing feathers, and a broken blood feather. And we will take it as a lesson in learning for us humans, that management can fail (we have three parrots in our home and have not had any problems until that day), and that one can never become too relaxed about these things.
The point? The point was, chances are some of the dogs were handled in that instant in ways we would never handle them in a "normal" situation. Chances are some were pushed aside rougher than we would ever touch them. However, this is NOT a "correction", nor is it punishment. It was simply reacting to the situation at hand. Our intent was not to "lessen the dog's behaviour in the future", nor would it, as most would see easily, be likely to lessen a terrier's behaviour of "chase and kill the bird". The point, if you will, is that the concepts of corrections and punishments apply only to training situations. It does not apply to emergency situations where life is at stake. In an emergency there is no conscious thinking of "Okay, how can I make it so that this won't happen again in the future", it is simply "Get that bird out of there before it's killed!". So there's a big difference when discussing what corrections/P+ you use on a TRAINING basis, and what things you are capable of doing when somebody's life is at stake.
So basically it's in the eye of the beholder. If you have the tools, and the knowledge, you can live your entire life with dogs and not ever
apply corrections to a dog (read: corrections, not punishments). If you don't have the tools, then of course you aren't going to be as effective in trying to work without corrections, because corrections are all that you know, or at least a big part of it. The more you learn, the more tools you obtain for that magical "toolbox" of ways to solve the bumps in the road you pass as you go along.
Kim MacMillan