Granted, and too smart by half for my liking, and if they get loose and unchecked they can cause real problems, as folks in the southern states can attest, but they taste so good, especially double-smoked!
So I guess my refined question might be, in light of the fact that conventional electric fencing seems to be the only effective way of containing them in their pre-bacon state, could they be trained to respond to the shock collar in the same way? Just in case the benefits aren't readily apparent, the use of this system boasts facilitated mobility, as in, if you had the transmitter and the
solar panel and battery built in to a mobile
shelter, all you'd need do is move the shelter to a fresh patch of pasture adjacent to the last one, and you're there. If they react anything like goats, who are also, I will point out, crafty as all hell and again too clever for our own good, they will probably figure it out that if they come back to their shelter for their human, they get their collar off for the night, I think this will be a major motivation for them as well. That makes me think that the collars better be indestructible, though.
I was also thinking, if you could pasture pigs this way, that if there were integrated wheels and an electric motor (that cut out if a collar went off), the whole shelter could creep along a preprogrammed path, if the idea is to keep them moving so as to keep fresh green goodies and easily available forage above ground and reduce rooting behaviour.
A last thought I had just now was that if there was no sonic warning system incorporated into the shock collar, a high-pitched noise just piercing
enough to irritate and distract and progressively louder as the limit of the range is approached, then there
should be one. If you can teach pigs that a specific kind or arrangement of wires means BAD/SCARY/PAIN to them, I think the same effect can be achieved with a warning that they then associate with the eventual shock. I would even bet that, in the event that this was tried, you would find them pushing their ranging if not to imminent shock range, then to the extent of their aural comfort.
A human being should be able to change a diaper, plan an invasion, butcher a hog, conn a ship, design a building, write a sonnet, balance accounts, build a wall, set a bone, comfort the dying, take orders, give orders, cooperate, act alone, solve equations, analyze a new problem, pitch manure, program a computer, cook a tasty meal, fight efficiently, die gallantly. Specialization is for insects.
-Robert A. Heinlein