@GunsForBucks: The wall I have been referring to is an earthen wall not fencing so I'm not sure the glitch thru applies. However, the boars have a notable tendency to press up against it all the time. If this was ARK or Subnautica with the slow graphics loading I would easily think the boars were rendering 1st and just walking through the space the wall would eventually occupy lol.
This screenshot shows my luxurious pigpen. I had set it up this way for the goal of incorporating existing features (water & vegetation). Beyond the earthen wall is the rest of the creek and adding an additional exterior barrier would encroach on some good Neck spawning areas. I think I'll try placing some simple pole fencing right on the inside of the earthen wall for the layering effect.
https://steamcommunity.com/sharedfiles/filedetails/?id=2579443765