Sunday, January 7, 2018
Borders and Walls
I think the perfect wall would be one that senses climbers, leans backward slowly, then snaps forward slinging the climber off. Like flicking a booger off your finger. If one gets through, subsurface air jets would be triggered and blow the intruder back over the wall.
On the other hand I don't see why a nice deep and wide trench full of rattlesnakes and punji sticks wouldn't work.