Spot on! Deer will knock it down. Cows will get.out. I would suggest training your cattle first. Once they have been trained they are more likely to avoid the fence rather than test the fence.
I put up 3/4 of a mile of electric fence and have been extremely happy with it. I have big valleys and so on but electric fence doesn't have to be perfect so don't over think it. If you do not want to be fixing fence constantly I have some simple advice. The first obstacle is finding a corner or something that you can use to tighten your wire. At the time of first doing this I only had tposts and trees so I used a combo to make solid enough corners for the project. Do not use to many post or put them close together. You want the fence to be able to stretch with an animal (bend but don't break). Mine has been up for a year and has never been broke by the neighbors cows and I have watched them hit it and leave the ground from the shock. Put your fence on the side of the post facing the cattle so they can't push it off of the insulators when they do hit it. Spend time sinking three good ground rods deep. I am in sand stone and still got mine down 6ft. Spread them apart by 6ft to create what is called a grounding field. I use a parmak 6v solar charger. I promise if it's done properly a few cows will touch it and everyone else catches on quickly. When I first ran mine I put marker tape on it so they could see it. Now everything knows where it is and the tape has mostly dry rotted away. Tsc will run 6ft post on sale for $3.15 with 5 clips. Might as well get the good post so you can use them later in a good fence and only buy them once. Also buy the heavy gauge wire. 17 gauge wire equals headaches. 14 gauge doesn't cost that much and I bet I have less than $600 in my fence including the charger. Mine will hit me hard enough with rubber boots on that I can't imagine what it's like for a cow to hit it barefoot and fully grounded. 11,500 volts at the charger and over 8,000 anywhere on the fence. Do not splice wire unless you have to and if you don't know how watch a video on it. It truly makes a huge difference. A friend of mine used small wire with junky ground rods and could only get 4,200 volts out of the same charger and his cows could take the pain to get past it. Dump a little feed under it to get them to touch it once and you are done with fence training! Stay and watch, if they hit it and leave the ground you are good. Also if you do it with the bend but don't break method tree limbs and other things won't break it when the fall on it. Also consider what kind of neighbor you have when asking for half on the barbed fence. The neighbor I have with cattle builds cheap, junky fences. I decided to take it on myself and build it with lots of steel so it's one and done instead we better go check it and plan to rig it. $2,000 will build a proper fence with 4" pipe corners drove 4ft in the ground for 3/4 mile. Obviously tractor gas and so on adds up but that's the little stuff you just buy when you need it regardless. Pipe prices vary greatly and clean pipe can be had dirt cheap right now. The neighbor has not been involved in the fence building at all and I am building it as close to the survey as possible. I'm sure it will be off a bit and if it truly bothers him by law there is not a lot I can do to stop him from correcting it. He is a tight wad so the chance of arguing a fence that's a foot off won't happen. Most old fences are off by 5-10ft and been there for 70 years.
