It's embarrassing when my dog barks at black people.

My goldendoodle (golden retriever + poodle) Bear is completely awesome. Except there's one issue. He barks at black people. It leads me to believe Bear is a racist. And that's totally not cool. He normally doesn't bark as he freely runs around our front yard. But there is a man who walks up and down the street doing yardwork for various people. When Bear spots the man he stops in his tracks and stares for a good, oh, 10 seconds and then disrespectfully barks his ass off. This gentleman feels the need to walk across to the other side of the street while apprehensively muttering "nice dog... nice dog" and holds his hand out as if it's going to protect him (yeah right). Bear would never run after him because Bear is SCARED SHITLESS of him. So there I am awkwardly waving at him while inaudibly saying "sorry for my racist dog." Oh well. This happens on an almost daily basis.