Thing to remember is there are only two reasons snakes ever bite
1. Defensive
or
2. Feeding Response
The reality is in 20 plus years fo field herping and more then my share of hoggies I have never ever seen a defensive bite from a hog. They can be doing their puffing and rattle snake impression then the fake cobra and you can just pick them up totaly wild and they never bite. One could some day some where but I think your odds on the lottery are better then being bit by an angry hog.
So every hog bite I have seen is a feeding response. There are two kinds of those.
1. The person being bit calmly removes the snake and goes on with life.
or
2. The person is what we called an ID-10-T or idiot in the army and lets the snake chew and chew and chew. When that happens some people have swelling and a reaction consistant with mild envenomation.
They are of course totaly harmless in reality to humans. Anyone who gets a swolen hand from a hog deserved it for letting the poor guy keep trying to eat a hand.
There were some pics that went around a while ago and that is where all this "hogs are venomous" came from in the pet trade. Of course the "rocket scientist"that got bit and photographed it allowed the snake to chew on his hand for 3-5 minutes by his own account.
Here is a link to captain dingus's accout of the bite http://www.herpnet.net/bite/
What a dipstickof course it did show what the worst possible outcome is and it just really isn't that bad,