They know when we rescue them, just as dogs and cats do, when you give them a home from the pound, which is where all our household pets have come from. My other two horses are the foals of the 29 yr old mare. Sadly the first was a twin (one died) missed on two early ultrasounds and she didn't stand for 3 weeks, but she grew to 15hh and I started her under saddle to see what she could do. Though a poor mover due to weak hind end she loved to jump, but she had a neurological disorder as a 6yr old and that was the end of her working days. We bottle fed her as a baby until she could stand and she has always been a bit sassy, but still makes us laugh at age 17. Her half brother was a very talented dressage horse that had just reached Prix St Georges and his career ended 2 years ago at age 11 due to kissing spine for which steroid injections no longer worked, right before I was diagnosed with st.4 lung cancer and MAC. We now do very slow exercises to strengthen his back and with my weakness I am grateful to do just that, which helps us both. Just today I found out he has hyperinsulinemia so will now have to watch his diet and add supplements, poor guy. For all that I wouldn't be without them, we are all invalids together. Lol