I have an 11 year old Labrador bitch. She's good natured, and well behaved with decent recall. She tolerates other dogs well and we can have friends round with their dogs and she is happy for them to be there. Not aggressive or precious about her space or things at all. She likes to go out in the garden and have a sniff about as most dogs do.
We have relatively new neighbours who have got a chow. He is a nice enough dog, a bit annoying in terms of barking and seems a little highly strung. When my dog goes outside he barks and jumps up at the fence. Sometimes this startles her and it nearly always ends up in a bark-fest. I call my dog away as I don't like the way he hurls himself against the fence and I would be worried if he managed to get over as to what would happen between them, in terms of aggression. My neighbours never call him off when he's doing this. They rarely tell him to stop barking or bring him indoors when he is so I feel as though I need to do something when he starts as it's stopping my dog wanting to go outside, unless we're there.
Has anyone got any good advice for how I can stop this happening? Would squirting a water pistol at him be cruel? Has anybody had a similar situation and found a solution please?