It's wrong to attack someone.
Sonny is hosting a dinner party and has invited his daughter, Piper, and her boyfriend, Peter to join.
Sonny wants Piper and Peter to appreciate the meal he cooks.
Sonny notices that Peter isn't eating much and asks how he can accomodate him.
Sonny notices that Peter isn't eating much and throws a plate at him.
Peter tells Sonny that he often takes breaks in between bites and compliments him on his cooking.
Piper and Peter immediately leave Sonny's dinner party and refuse to speak with him ever again.