A retired fighting dog showing aggression? Come on, we know all dogs bred for dog fights are docile. If they weren't, we'd be reading stories on here about attacks by pit bulls and other fighting dogs.
He's a boxer. Boxers are almost universally sweethearts.
He doesn't fight and you don't read.
He was a fighting reject. He wouldn't fight,"
As I read it, the dog was not 'retired.' He never was a fighting dog because he did not have the heart for it. Much like our sled team dogs up here - if they don't shew the competitive spirit and the team spirit as puppies, they are given to families as pets. Still good dogs, just not good for the team.
Rule 1. Read the article carefully and comprehend all parts of it:
“He was a fighting reject. He wouldn't fight," said Schogren.
Rule 2. Add a comment that makes sense based on the material comprehended while executing rule one.