["Yesterday I walked through the park to get some fresh air. I saw a mother beating up her kid in the park. I can't believe that some people really will do that.", 'That sounds aggravating. Did you say anything to her?', 'No I had no idea what to say at the time. And worried that she might turn on me.']
Thats okay, you should call the police next time.
Yesterday I saw a mother beating up her kid. I couldn't believe it!