Our Golden Retriever was petrified of the Nest smoke alarm. It would announce that there was "smoke detected in the kitchen" and he was so petrified of the voice that he now has extended that fear to a fear of cooking.
We have since replaced the nest alarms but now any whiff of cooking and he's off.
He'll either go and hide in the downstairs toilet (which I'll have to open for him), or go and sit in the back alley by the gate.
Once the cooking is done though, it's back to typical GR behaviour of being closer than your shadow, in the hopes of a crumb falling.
He also wees like a girl. Never cocked a leg.