I have a great example if this from my own career. Back in the mid 80s I went to work for an Arabian stud farm. This was a hard decision, since I was a hard core field and show hunter person, but I had just bought a house, and the appeal of a steady paycheck with worker's comp paid and taxes withheld as opposed to being an independent contractor won over discipline preference. Let me be clear - I REALLY didn't like Arabs!
But I figured I'd learn tons about breeding and repro work, foal out lots of mares and work closely with the vets, all of which I did.
Here's what I didn't expect - over my own resistence, I learned halter handling skills that I use to this day. There was a halter trainer in the barn who started working with the horses as weaklings and yearlings, and once I got over the "I hate Arabs" and "Halter is stupid, why don't they make the horses DO something" mantras in my head, it was fascinating to watch. Long before NH was a common term, I watched the halter trainer get the babies to focus completely on her, get them to weight a back foot by bringing her opposite shoulder forward, use body position and whip position to influence how the horse was standing. The whole process of teaching them to keep their weight on their hind feet but stretch forward with their head and neck was fascinating too, you know, besides that it was a stupid pose and stupid showing convention. Whip handling, and the concept of a "whip gate" was a whole sub speciality.
So the first thing I do with a horse that won't load is walk away from the trailer and spend a few minutes reinforcing this stuff, and then I can get them to load. And I call on this knowledge any time I stand a horse up for a photo, for the vet, or to make on of my horses stop leaning on the farrier without making the farrier drop the leg first.
All because I opened my mind to the radical concept that all good horseman have something to teach us about communicating with our horses, even if we don't want to practice their discipline.
**Apologies to all the Arabian lovers out there, the views expressed here are thirty years old and I promise I've evolved since then.