Okay I have been thinking about all of this pretty much all night. I had weasel nightmares lol. My problem is that I pretty much live on a beach minus the water. VERY sandy soil. It would take a weasel about 10 seconds to dig 2 foot. So If I dig a trench down 1 foot and it is 2 foot wide should I just put the fence in the middle of that trench 1 foot down of course and then fill the trench with small rocks or gravel ?