Hogs only bite if they mistake your hand for a mouse. I've never heard of them biting from aggression or fear (they mock strike instead - just a closed mouth head butt). You can safely handle them with bare hands, as long as you don't smell like rodents.
But even if they did start nibbling on you, it takes a bit of chewing for them to get their venom in. The worst account of a bite (minor swelling and itchyness up to the elbow on the bitten arm) was after the handler let his hog chew on him for 5 minutes. Most people would get them detatched in less time, I would think.
A very tiny percentage of people can have allergic reactions to hog venom - much like bee stings. But if you aren't susceptible to those kind of reactions, I wouldn't worry.
Hogs are great, I love mine. He puts on a show (flaring his "hood" and hissing) if he doesn't want to be bothered, but that's about it (and he settles right down once picked up). Very good natured over all. In fact the most common complaint about them is their tendency to go off feed now and then... you NEVER hear about aggression or biting at all.
-----
-----------------------------------
1.0 sinaloan milksnake
1.0 western hognose
1.0 colombian boa