Tbf dogs can be pretty racist. Like my dog he hates asians and barks at them, he's probably nervous about dinner time.
We had some Sudanese people living near our place. Our place sits overlooking a cross street, and is two storey with a large balcony. All the other places in the cross street are single story. Anyway one of the woman in this family (was a number of them renting together) used to talk loud on her mobile phone at like 10-11pm of a night and wander all over the road.
One night I left the balcony door open and had light off and our Lab was out on balcony. Woman starts yabbering away on her phone, and was literally on our driveway. She didn't realise our girl was sleeping on the balcony.
Anyway she must have woke her up with a startle. Next minute I hear defensive barking from balcony and shes in full defence mode, barking to alert us someone is too close to the house. I go to settle her down and see the woman wandering back to her house.
A few days later our Lab was out the front on the lawn during the day. Woman comes out yabbering on phone again and our dog starts barking at her.
Now.. she is partially trained and trained to bark to alert us of unknown people, but it's the first time I've seen her get like that ...
Anyway they've moved now (thank shit) and the street is peaceful again.