A Family in Muir Woods encountered Will Rodman, Caroline Aranha and Caesar when walking their dog. They were shocked to see a chimpanzee on a leash and their German Shepherd was aggressive towards Caesar. When Caesar retaliated, the family were quickly driven away. This is a pivotal point when Caesar finally begins to gain enough self-awareness to realise that he is not a human or part of Will's family.
- It is likely this family were victims of the ALZ-113 (Simian Flu) outbreak.