Absolutely! As a parent, it's my belief that it's my responsibility to protect my children and any other child from doing harm to themselves or others. To watch the inappropriate behavior take place and not say anything just isn't in my nature. If the other parent responds to my reaction negatively, I would respond with "OK" and keep it moving!
What do you want the panelists to weigh in on? Email your ideas to editor Tamara O'Shaughnessy at tamara@chicagoparent.com.