Star, as a person with a working dog I don't either, but I know for a fact all bred working dogs we have will put their life on the line to get their jobs done, and that makes the dog happy.
vetta the owners stop the dogs before they get to that point, i happen to be involved in dog sports, every owner their is extremely kind... and they dont breed their dogs like they are items to be used.
I do it. I am well hated by some people by doing it. I ask questions- and if the answer is not humane I start documenting and reporting. Documentation for abuse is so important. Not just writing it down- pictures, videos etc. I got a whole barn here shut down here due to abusive practices lol.