I have heard that K9 get abused and are basically cannon fodder.
There have always been handler aggressive dogs. I’ll bet it wasn’t the first time the dog had bit a handler when the dog got a correction.
Most k9 handlers aren’t dog trainers either.
Ive heard similar allegations. That is why Im not a fan of the K-9 program. Too many of the dogs are mistreated, abused and neglected.