Pigs are so smart that psychologists do not use them in experiments, because the pigs can
figure out what the experiment is about, and skew the data hopelessly.
They are basically good natured. But a sow with little ones is not to be trifled with. If
you hurt a little one and it squeals, Mama goes on the warpath instantly and can be very
dangerous. One sow we had could lift a log a foot in diameter and almost twenty feet long
that I hitched to bottom of wire fence to keep her from going under it, and with her snout
toss it three feet into the air. Awsome power. We never kept boars, though. I didn't want
to get slashed.