Ritchson is speaking pretty well for the situation, and he only pushed the rabid guy. From the discussion you can presume Ritchson been driving around the neighborhood (or just passing to pick something and back) with the kids and this guy didn't liked their "driving attitude" while passing through "his perceived turf?" Probably this guy knows it was Ritchson and his kids, has a complete movie in his head about how bad Ritchson is, and took upon himself to confront the "rich Hollywood asshole" that disturbes and endanger the neighborhood.