Do you believe that Atticus is angry or proud of Jem for disobeying his orders to go home? Why?

Initially Atticus is angry that Jem refuses to leave. This is mostly because he is concerned for his (and Scout and Dill's) safety. There is certainly a subtext here that says Atticus is very proud of his boy. Atticus's tone when the men leave is more of admiration for his kids rather than admonishment.