My friend who had taken K and some finnish vodka and started barking at two other friends like an annoyed dog because they had turned up late for dinner. He kept this up for some time, to the point where a female border collie owned by a girl who lived there actually started looking at him in a concerned way like she would with a pup behaving strangely. This was full on lycanthropy, I fully expect that had he got out the door in that state the dog warden as well as the Police would have brought him back…