There is so much wrong about all this that I'm not really sure where to start.
Of course, if you are talking about a puppy which shows no signs of growling or guarding behaviour, picking it up and putting it on the floor is no problem. It won't teach the puppy not to get up there, it won't make it less likely that the puppy will get up there in future - it won't achieve anything other than the removal of your puppy from the furniture that one time. But if that's what you want to achieve, sure, it's no problem.
When you add guarding behaviour and growling into the picture, you are dealing with a very different situation and circumstances.
>Training apart this is the only safe way.
NO, forcefully removing a growling dog from somewhere it wants to remain is a very UNSAFE way and can result in the situation escalating, when repeated, into actual biting and full-on guarding behaviour. Please don't give advice out like this online, it is harmful to dogs and to dog-owner relationships.
>It is in no way confrontational.
Yes, it is if your dog is guarding a place and you are removing it from that place. I fail to see how it CANNOT be confrontational. You want different things. The dog wants to stay there. You want it to move. What can be more confrontational than that?
>And I have never known it cause a problem.
In my experience of hundreds and hundreds of dogs, of almost every breed, and over many years and in my professional experience, this type of persistently forcing what you want on a guarding dog - whether that dog is guarding a bed, a bone, a bowl, or a location - frequently causes problems, is responsible for horrific bites and injuries and has led on several instances I can think of, to a dog being PTS.
>dogs do have to know where they stand
So I'm glad we've established that we are talking about dominance, after all then. No, dogs don't need to 'know where they stand' in terms of a hierarchy or pecking order. They just do what works. You can capitalise on that by ensuring that what works is also what you want.
>because they know what you ask is what they must do
Or what? Or you will make them do it, anyway? Even pushing a dog's bum down into a sit is using an aversive - the dog sits to escape the uncomfortable pressure of your fingers pushing on its back. Dogs do what earns them rewards and what enables them to avoid punishment. Punishment is fraught with fall-out and very difficult to use with the desired effects, even if we leave the ethics aside. Rewards are the only other way to train.
> you can't always wait for the required result in order to reinforce it.
That's why you use a lure, by way of food. You can also use shaping or capturing, but yes, then you would be waiting for the dog to offer the behaviour for itself. If you want to speed that up, food lures come into play.
>If you are training a 'sit' no problem you just wait for the sit and then reward the action but there are times when this is not possible for example if your youngster runs into a children's play area you don't stand there clicker and treat in hand you damned well go and collect the dog apologising as you go.
Sorry, I'm completely lost - what does this have to do with the case at hand? Reward-based dog training is not only about giving rewards for behaviour you like, it is equally (if not more so) about preventing your dog from doing the things you don't like. Since once a dog has done something unwanted, and found out how fabulous it was (been rewarded by it), the dog is only likely to re-attempt it in future. Prevention is what you work on, not making your dog do something forcefully, or physically making it move. You get out of that situation in the safest way you can (using a food lure and rewarding the pup for moving) and then you try to prevent it happening again in future. I'd hazard a guess, though, that if a pup had guarding behaviours like this, it would not only happen on the sofa, but if you wanted (for some reason) to get the pup to move off its own bed, or if it were sleeping in front of the TV and someone interfered with its sleep there in some way:
There are 2 different issues here, one is teaching a pup not to go somewhere you don't want (see next paragraph), the other is dealing with guarding behaviour. I would put the latter as a higher priority because it has dire consequences if not addressed. That is what my advice, to this point, has been about.
Regarding preventing a dog from being somewhere you don't want, in this instance, you would keep the door to the room with the sofa closed all the time you're not supervising, you would crate the pup, you would have the pup trail a long-line, so should she attempt to jump onto the sofa, she is unable to - if the pup is never able to do this, the pup never will do it. Case in point: I live in an open plan house. Whenever we have a puppy, we put stairgates up for at least the first 18 mnths of that new dog's life. When the stairgates are removed, the dogs never attempt to go upstairs. In their minds going upstairs is an impossible barrier, psychologically. That same barrier needs to exist for getting on the sofa. It is harder, because you can't use something like stairgates and have to rely on supervision and prevention, but it works. Same thing goes for countersurfing in the kitchen - observe, supervise, and shut out or crate puppy when this isn't possible, keep food shut away so puppy won't get rewarded if it tries it - if it never works, it never will happen.
> I am all for using positive methods of training but you have to use some common sense and calling a pup or dog down from an area that is too high for them to safely jump from is not good common sense.
No - forcefully removing a growling puppy from their comfortable sleeping place is not good common sense. In fact, it's really quite dangerous advice.
As for the jumping issue - this situation, as I just explained, should not happen often because excellent supervision should be put in place to ensure the puppy isn't getting on the sofa frequently. Jumping off the sofa once is not going to damage a puppy's joints (puppies jump more in play with each other than getting off the sofa once!). Jumping off the sofa repeatedly would not be good - which is why, as explained above, prevention is the answer.
Prevention, though, is not going to address the underlying guarding issues. To do that, whenever you want to move the pup - even if off its own bed or when it is sleeping in front of the TV - you're going to need to pre-empt any guarding behaviour before it has happened and use a food lure so the pup comes to quite like being asked to move, as it results in something positive.