Maybe its because, being a suburban girl, guns are really really scary to me, but I hate the idea of shooting a horse...Even if it wasn't my horse, it would break my heart to hear the "bang," but just knowing what was going on outside wouldn't bother me much. Now, if it was my horse I'd be in a bit of a pickle. I want my horse to be put down quickly and humanely, however, I don't think I could bear to watch him/her being shot. Especially with the blood (I assume) would come out. Now, giving them to the Big Cat Rescue? Perfectly willing. The horse worked to please their whole life, and now they will work to please in another way.
"The wise man thinks he knows nothing.
The fool thinks he knows everything."