Hi sarabe. Just simple stuff people have mentioned like not letting him go through a door first, or sleeping in the bed with us (although we've not been so good with this one) and normally he'll have to wait untill we're finished before he gets his food.
It doesn't sound like much actually
At 5 months old he is still a baby and like all babies they do test the water but there seems to be more issues here so you really need to have someone come and see what is happening.
With going through doors first, that is more for safety than to dominate, a dog rushing through a door can cause an accident, get your dog to sit first, then it is more difficult to rush through the door.
If think he is quite a dominant dog and we have made some efforts to show him who is boss but he growls at us on a daily basis now and has drawn blood now on at least two occassions.
I wouldn't put this down to dominance and why do you want to show him who is boss, I have never done that with my dogs but they are all obedient. 2 came as biters but that didn't last long, if I had tried to show them who was boss, I would have made this problem worse. That doesn't mean that the dog gets away with this, but get my way by other means. If I accept a challenge that a dog gives, I will loose every time so I have to use my brain instead.
I probably not the best person for advice about this type of behaviour in dogs because i have never experienced it, you need to make your mark as the pack leader as soon as you get your dog, when i got my dog i started straight away. i pretend to eat her food before i give it to her (pack leaders always eat first) i walk through doors first ect ect.
We are not part of a dog's pack because we are not dogs so we cannot become the pack leader, we can be a leader though. Pretending to eat before feeding your dogs is old fashioned now, it doesn't make any difference to the dog if they eat before or after us. I have always fed my dogs before me because it is more convenient, and never had any problems.
The first time I heared Oskar growl was towards other dogs. We're trying to force more interdoggy contact in the hope that this will somehow help. The first time he growled at us was during play and then more seriously when we took back some food (his number one priority in life) that he had stolen.
This sounds as if it could be fear and by forcing him to more interdoggy contact will make this worse which could be why he is growling. Never force your dog to do this, but keep him at a distance where he doesn't react. He will start to think that other dogs are not frightening things and that distance will get shorter and shorter until he will meet other dogs.
Dogs use growling as communication, not all growling is aggressive, it can be many things. If he steals anything never try to take it off him, try and do a swop. He is guarding what he has stolen so it must be highly prized, you need to have something even higher to swop with him. This works, done it many times.
Oskar bites a lot. Whenever we play I know I'll spend much of the time just fending him off. Normally his bites are just friendly mouthing but he also loves to go for our clothes and then it can be really hard to get him off.
When he starts this, all play stops, once he is quiet and settled you can start to play again. He will soon realise that this behaviour ends his fun. If you stop all play when he starts, he shouldn't get to the clothes.
But to be honest progess is slow. Oskar is a friendly dog but sometimes he just seems a bit confused. He can go from growling to friendly play in the space of a minute.
He is still a baby and you need to be very consistant, there is no point in letting him get away with something one time, then not another. Work out what is acceptable and what isn't then keep to it. You said he seems confused, he probably is and only by being consistant will he understand what you want of him.
Please let us know how you get on.