Preceptions of pressure

I was watching someone try to load a horse the other day and I commented that the mare didn't like the pressure they were applying. The person responded with a confused expression and responded that she didn't feel they were applying much pressure. As if her perception was more inportant than the horse's view on the topic.

This brought me to speculate, how could their be such a different interpretation of "pressure"?

Webster's says:
Pressure
1 a: the burden of physical or mental distress
2: the application of force to something by something else in direct contact with it

So, back to this horse, they had run a lunge line behind her to try to push her into the trailer, which looked to me like force "by something in direct contact" with her (definition #2) and as the mare reared to spin away from the trailer, it seemed clear to me that was an example of "mental distress" (definition #1).

This all ended with the mare not getting into the trailer and with multiple lacerations on her face from her nylon halter and possibly anything she hit on the way down as she reared and flip over backwards when she was lashed to the inside of the trailer.

I'm at a loss as to why humans have a different idea of "pressure" for themselves and their horses. If a human was forced into a room (or a box) with ropes, I have no doubt that they would feel they were "pressured". If they were pushed to the extent that they were fighting against restraints, I have no doubt this would be perceived as "pressure" as well. I think the very thought of rope restraints would give all but the most kinky of us humans some level of "mental distress". (-;

Horses can feel a fly on their coat, so surely it's not appropriate to assume they are insensitive to the point of requiring more pressure than we humans feel comfortable experiencing.

Is the human perception that force isn't significant pressure because horses are so large in comparision to our own physical size? Whale trainers know they can't pressure a whale into performing, and they are certainly larger than a horse, so size alone can't logically be the reason. Or is it because whales won't tolerate pressure and horses will? Horses will forgive us if we pressure them and whales just leave and ignore humans that try to apply force. Or worse, and hurt the trainer.

If the reason is because horses tolerate us, then it's a horse's good nature that allows humans to behave in a way that is potentially harmful to the horse. If the horse was a human child, forced, drugged, and finally pushed to the panic point of hurting herself in her struggle to get free, the local Children's Protection Agency would have stepped in and taken control. But it was only a horse.

At the rist of being labeld a tree hugger (which I probably really AM) I think we should all look at what force is truely necessary and consider how we can become more compasionate in our interaction with the animals that share our planet. After all, just because horses tolerate force, pressure and abuse, doesn't make it right.