Only horse people can get so excited about finding both testicles when a horse is going to be castrated lol. I'm glad that you won't be having to do an invasive surgery to find it when he does get snipped. I was working with a horse for a while, he was about 2, hadn't been gelded yet, (owner was thinking about keeping him intact for breeding), and in the 6 months or so that I worked with him, we never could find the second testicle. He was gelded sometime after I left the ranch, and I have no idea if he finally dropped, or if they had to go in and find it, but I looked almost every time I was out there. I'm sure that people thought I was strange too.