Hi Poohbear,
My friend had a german shepherd, who started to do the very same thing.
She thought it very odd at the time, as she too, couldn't recall any incidents. She had her dog everywhere, even to a behavioural therapist, because there had been no sign of this behaviour at all, he seemed only to be upset by blue cars, didn't matter what make, but he'd bark, try to hide behind her, wouldn't even walk past a blue car in a car park

Until one day, one of her neighbours told her that she'd seen a little boy waiting in a BLUE car parked up outside her house, and he was shooting peas through one of those pipe things. Obviously he had been trying to hit the dog with them, and I guess he obviously did, as the dog was so stressed out by the sight of a blue car.
But it just shows you, the smallest of incidents, can stress out, even the most calmest of dogs.
She had to revert back to basic training with him, she would take him to carparks, and approach blue cars, when he got stressed out, she would turn and walk away from the car, when he calmed down, he was rewarded, whilst she ignored the stressed out behaviour, she would then turn and walk back to the blue car, until he realised there was nothing to be afraid of.
It took a while, but guess what, now they have a blue car :rolleyes:
Hope this is of some help to you,
Sharon
X
It took a while