"Consider" using metal tent stakes (with the hooks on the side (or re-bar)) to anchor fence closer to the ground. I've seen small cement footers poured a few inches wide with the bottom of the fence sunk into the concrete.
"Fences are not to keep the inmates in, but to keep the wild animals out"
Oren They have computers, and they may have other weapons of mass destruction. Janet Reno, Attorney General, Friday, February 27, 1998