Big brothers

It's morning and the boys mom is up stairs making breakfast and pancakes. Their dad is already at work. It's about noon and Chris is playing call of duty while damian sleeps on the couch in his underwere. "Chris, Damian, breakfast time." Chris starts up the stairs but Damian leaps up and pushes him down. Chris grabs Damians ankle at the top of the stairs and trips him. He starts climbs over Damian and starts running into the kitchen. Before he can make Damian jumps on him and gets him in a headlock. "yuck!" Chris yells "would I kill you to wear a shirt when you go to bed". Damian laughs and says " when your body's as awesome as mine why would you want to were a shirt ever?" there mom comes in a pulls them apart. As soon as there apart Damian takes all the back and three pancakes. "you got enough food fats?" Chris yells "Chris be nice to your brother" his mom says "you never yell at him when he calls me fat!" from the table Damian yells "ya cause when I say it it's true" how should Chris deal with this situation?