Here's a "what the..." story of the day:

Oregon farmer eaten by his own hogs.

And some related anecdotes from the forum where I found this sad tale:

Reminds me of Mr. Daniels. When I was a kid, a long long time ago to be sure, penned hogs killed him.
There was no forensics and stuff like that back then but the way he was found everybody kind of figured what happened.

He had one leg in the pen jammed between the gate post and the gate. Hogs had eaten all the meat off his leg up to the knee and he had blead to death.

Figured he was either trying to step over the gate and fell or had a heart attack or something. All the hogs could get at was his leg and they flat ate that.

Something similar happened to a local farmer back when i was a kid. apparently he had gone into the pasture to check on his hogs and suffered a stroke or heart attack. They ate him completely up. it was the talk of the community for a while. then everyone forgot about it. hogs are meat-eaters for sure.

...

My older cousin raised what were then known as Spotted Poland Chinas. He had a boar that he was raising to try and win the heaviest hog sold at the Sioux City stockyards in June prize. Tiny had weighed over 1,000 pounds, but had lost down to about 940 due to being hauled to the Spencer and Minnesota State fairs (among other smaller ones as well). One morning when Ron went out to feed the other hogs, Tiny came roaring around the corner of the hog house where he didn't belong with a)a roar, b)his mouth snapping and c)the obvious intent to do Ron a great deal of harm. After he made it safely over the fence and rounded up a posse to get Tiny safely ensconced (they thought) in a sturdy enclosure, everyone was treated to a display of how Tiny got out in the first place. He would grasp the woven-wire fence in his teeth and start walking backward until the staples popped. This time, he was incarcerated in a building until the next morning, when the hell with the June prize, he was loaded up and hauled off to the (p)big house.

Great stories!  

I have some chickens where I live, and I think they would do the same to me if there wasn't such a great disparity in size.  They have that predatory look in their eye, most definitely!