Good for you. I've had similar things said to me about my having had (and have) lab/chow mix dogs. The first one we had, who I lost in 2003, absolutley hated the next door neighbor. It took us all a long time to figure out why the dog hated the wife, but loved the husband and kids....but we finally figured it out.
When the dog was about a 6 month old puppy, and the youngest child next door was a toddler, mom swatted said toddler on the diaper for teasing the puppy through the fence..........that dog disliked that woman for the next 11 years.