Greetings StarTrekker!
I hope you and ZombieBride both get excellent service dogs. Dogs tend not to get along with me.
In one dimension, that's cool about service horses, and would fit. I've gone horseback riding before, and the horses knew to take care of me. One time, the trail was so steep that the guide had me get off the horse to walk it down. Normally, a horse will spook and the human has to comfort the animal. That time, I was so scared that the horse turned its head to comfort me. Another time, I rode two horses when I shouldn't have because I had broken my foot ... both horses acted like my babysitter. One went slow and refused to go faster. The other one normally jumped a creek, but on that trip walked gently through the water instead.
In another dimension, I'm going to Steel City Con today as my natural Star Trek self ... that is, Q. Now I might consider a service tribble, and in fact have some hanging around, one of which has been made into a pouch ...
...
_________________
~~ the phoenix
"It's the end of the world as we know it, and I feel fine." -- REM
.......
.....
...