Mine has never shorted out. Put a wire low to the ground (just a few inches up), one about 1 - 2 feet up, and one at the top. Predators will sniff the wire and get zapped. I've also noticed that they seem to sense the electricity and just steer clear. I have electric around my chickens and my goats. So far, so good.How would you go about that? Wouldn't the wire short out from being by the grass. Wouldnt the mink would just go under
ETA: I should have said that I use electric netting, which is much more expensive, but we found it works better here on our hilly terrain. Plus, we can maneuver it around trees and move it when we feel like moving it.