I agree with wares, as kids we had an old flat fendered Willys jeep that we were allowed to drive. One afternoon after school we parked on the hill in front of the house and my brother left it out of gear. It went rolling down the hill into the fence(high tensile) at at pretty good clip. The wire never broke it ripped all the slack out from the adjusters and it was saved it from going over the bank. Pretty amazing stuff!
We never had a horse cut from it. The electric wire, yes, I had a horse get hung up in it and came close to crippling him.
I DON'T LEAD 'EM AND FEED 'EM, I RIDE 'EM AND SLIDE 'EM.