OK so you want to talk about sore bodies and volunteering to participate… lets take it one step further….. Is your horse a volunteer to the work you put him through? I am sure there has been times after a workout, training session, or show he was sore. Most likely, because you used the example of taking him to the vet lame. I realize horses can step on nails or in a hole and come up lame but most of the time a lameness issue is due to the work we put them through. So with that said maybe you should turn your horse out and see if he volunteers…
Then about calves getting jerked. I think our definitions of “jerked” are different. Yes they hit the ground , but if the roper doesn’t pitch his slack then they get jerked a whole hell of a lot harder. That is when they get disqualified and fined. That goes for most rodeo associations.
As for you’re the difference between "injured" and "harmed", I am just not seeing the difference, so call me stupid on that one..
I DON'T LEAD 'EM AND FEED 'EM, I RIDE 'EM AND SLIDE 'EM.