Ehm...apart the
work of Paula "Croft" of which I'm very curious (hunting crocodiles in the Amazon's River?)
, I think that bonitace isn't a good test for a normal working dog, used by normal people for rescue, for guard, for sport and as a pet too.
Some years ago in a bonitace a csw take "Oh" (good) from a well known Czech judge; few minutes after the bonitace, this dog attacked and tried to kill his own handler!!!!
I think that a ZTP is far better to evaluate character stability and training capacity (which is very important) of a working dog.