This may be controversial, but are we all sometimes a bit guilty of abuse?
For example, have you ever watched a "professional" or anyone else mistreating a horse, but you said nothing? Or have you ever yelled at or maybe even hit your horse out of your own frustration? I think even the most compassionate among us might be able to answer "yes" to those questions, even though we may feel sick with guilt afterward.
Just thought I'd bring up that challenging topic.