Ok. So yelling, although not my style, might not be a huge cause for concern to some people.... yelling on a regular basis. Seemingly yelling enough that neighbors understood it was fighting, not loud playing. A child missing after a really loud fight. Child's bike being home. Child going missing (without the bike) overnight the night of the fight and not there in the morning, as he usually is. The neighbors intuition that something was off.... by him not being there and by the parent refusing to report to the police. And still no sign of the boy, this much time later. As well as him reportedly being kind and helpful, by teachers. All that points to the fact that the yelling was likely problematic. This doesn't seem like a little fuss because the dishes weren't unloaded......
My opinion!!!!! But it sounds like he was treated like an adult with what his responsibilities were and talked to like a dog. Im extremely worried about him. My heart feels for him in a different way than many other cases.