Driving home from work moments ago, I saw a women and a toddler standing in a grassy median between a divided road getting ready to cross the street. I was the only one on the road when I saw her hit her child so hard he fell to the ground. Then as I was passing she pulled him up by his arm so hard I really think his arm came out of the socket. I was so shocked by what I had just seen, I burst out in tears at the stop light(and I don't cry easily). It was one of the most upsetting things I have ever seen IRL. What do you think? Am I overreacting? Should I call non emergency and report?