One of the saddest days I ever had was taking an old former hunt horse out. I thought we would have a blast, since whenever I went to the Hitchcock Woods with him and he even SAW a hunt fence, it was like, nothing else in the world existed for him. And this at 25 and slightly swaybacked.
He was such a crotchety old man - the night before I washed him (he hated being clean), stabled him so he wouldn’t get dirty (he hated being inside), and then trailered him the next morning (he hates trailers). When I was tacking him up while tied to the trailer, he was at the veeeery end of the leadrope, his bottom lip stuck out like a mule. He would not look at me. Then suddenly, the mobile kennel pulled up. I have never seen more of a change in a horse. He was suddenly 10 again and perky. He turned into an older, very attractive grey thoroughbred, instead of a nag.
We never got a good run that day. I was in the back of the field, as a guest. Guidon was a MESS the entire day. He was seriously displeased with bringing up the rear, even if it was first flight. Every time a hound was near us, he wanted to follow it, instead of the field master. He was basically too big for his britches. He was snorting, and jigging, and pulling at me. We even had some moments of passage and piaffe I think (he had some dressage training too).
At the end of the day, he was depressed and tired. In the back all day, and no real run, although I think he was more winded than if we had one from his antics. I’ve never had a worse ride home than I did that day, even though I was coming home without having shown my ass or broken my ass. It was just so sad to think about him doing his last hunt (I had taken him for that reason - retirement was looming because of his sway back) and being so unhappy not to be his old self. I want to cry thinking about it.
Of course, I tell non-horse people or even non-hunting people about it, and they think I am being really stupid. But it’s just something really special to see a horse that loves his job like that. Consider yourself lucky to have known one of them
And think twice before taking him out - especially injured. Could be great, but could be a potentially VERY long day for both of you. I wonder if you could find a huntsman that would let you hack out with just a couple or two - where you could really control the pace and length, but he could still feel a bit like he was back in the saddle. The retired hound sounds like a winning idea as well. Good luck 