I had to put my horse down a couple of hours ago. She was only 8, but had developed lung problems to the extent that there was scarring and the medication wasn't really doing anything. I didn't want to put her through the heat of the summer when she couldn't breathe. The worst part about it was that she was happy to see me, she came to the gate to meet me when I went to get her from the field. She trusted me and I brought her inside so that the vet could put her down and I feel like I let her down even though I know it was what was best for her.