"Go Back to Where You Came From"

Incident occurred January 16: 

I, a white woman, was walking to the neighborhood grocery store with my five-year-old Chinese American son, who was riding his scooter. A small dog ran up to my son, who told it to "go away." The dog's owner told me to "teach him some manners" and then turned to my son and yelled at him to "go back to where you came from!"