My golden retriever will raise his lip on one side of his muzzle when I stroke his cheek. Stroking the other side doesn't provoke a similar thing - it's like a lop sided sneer. I've been figuring its an autonomic nerve twitch - like when you manage to get their 'scratch g-spot' and the back leg starts waving involuntarily. He shows no signs of being upset about it, nor any signs of dominance/aggression. Should I be worried?
Thanks Claire and Cath, I'm not worried about him but sometimes I wonder! It's impossible to imagine him being aggressive - he's a soft lump- but then suppose everyone says that so I was just looking to see if others have had similar with their dogs.