I saw this video: https://youtu.be/x4aaSRr5L_E in an "OnPasture" article a while back, and I was pretty skeptical about getting untrained cattle to do it. However, tonight I needed to get a cull cow off to the sales barn and I didn't feel like moving the whole herd up to the yard to use the corral... she wasn't my cow, and I've had very little interaction with her since she arrived. She was also probably one of the most high-strung cows we got out here custom grazing this summer. From the time I parked the trailer, it was under 30 minutes to get her separated from the herd, moved a quarter mile to the road, and into the trailer. Mind: Blown. ???