I did see another(unexpected) side to wolves recently, a very short Youtube clip of a small pack of about 6 wolves 'facing ' of two Spanish/Italian sheepdogs. The wolves advance at a run with their tails held completely vertical like slowly waving flags. They meet the dogs face to face and then slowly advance,snarling and driving them down the hill a way.There is no actual contact/ fighting in this particular case, but I'm so used to seeing wolves(on film) trotting, running, slinking, looking alert or wary,(all usually with tails relaxed or tucked 'furtive' looking between legs) howling, greeting each other, feeding etc but I have never seen this particular behaviour with such upright tail posture before. Of course its to be expected as wolves are canine ancesters so all their behavioural traits are the same, even if used with differing frequencies. Its the same as hearing wolves bark- its much rare than howling probably but just the same as a dog's bark and used similarly as a warning.
I've often wondered how/if wolves and these sheepdogs actually interact in those Meditteranean countries where dogs are still used to guard sheep flocks- now I think I know a bit better how it works. I presume it depends mainly on the ratio of the wolves and dogs. I guess in most cases enough dogs usually arrive to push the wolves back again by force of numbers, a single wolf would easily be chased away, but if numbers are roughly even initially it looks like a drawnout close encounter as it might be between two packs of domestic dogs.
... but that's just interesting behaviour and I agree they do get a bad press.