It is true then... some dogs ARE smarter than their owners! LOL... Ok, ok, I was race baited on that one! It's really not my fault!
Oh God... I'm starting to sound like a liberal!
Actually I would guess that as most African-American diets are different and one tends to smell like one eats then perhaps the dog was just reacting to an unfamiliar human aroma... I lived with Africans who later became Americans (some of the only TRUE African-Americans in this country..) and I have to say that their diet was very foreign and they did smell different. Not in a bad way... just different; very different.