> You can pen a horse by painting stripes on the ground around it. No way. Horses are quite good at evaluating ground obstacles. I've never had a horse hesitat

> You can pen a horse by painting stripes on the ground around it. No way. Horses are quite good at evaluating ground obstacles. I've never had a horse hesitate at a painted line. There are some breeds of cattle which will not cross a painted imitation of a cattle guard, but those are beef animals bred to be dumb and docile.