Never, never be fooled into believing that Foxes will never take piglets as this fact is very untrue.
Some farms have had mjor problem of loosing piglets from this problem, but gladly not us for a couple of reasons.
One being we put a fox fence around our farrowing area and two we had a good Game Keeper to keep their numbers down.
Its alway better to be safe than sorry, so as far as I am concerned Hubby's efforts are not wasted.
I definitely think he deserves that beer.