99 times out of a hundred they are going to head for cover it is that one time you have to worry about. Most attacks are from a wounded Hog, but there are exceptions.
I was slowly creeping into my high seat mid-summer Roe Deer rut, well before dawn. I was just crossing a ditch and a very large Sow charges right at me across a pasture from near a hundred yards. I've shot a lot of Hogs mostly passing shots, where you can't exactly place your shot, the vast majority of Hogs run another forty to sixty yards before they go down. This was my thinking when I raised my rifle and thought when I shoot, the chance of me getting off a second shot before she made it to me was slim. The math is simple, a running Hog can travel at about 15 yards a second, Working the bolt and re-aiming and she is going to cover 45 yards in three seconds, I really hope I don't miss. After that encounter when sneaking into a high seat in the early morning I now carry my 1100 loaded with slugs.
A buddy of mine and a farmer, that had clipped a large Boar with his Brushhog, were tracking the Boar, the Boar came out of the brush and went right at them. My buddy couldn't shoot fearing he might hit the farmer, He ended up killing the Boar with his knife. This guy is an unassuming type, don't judge a book by its cover, he is the real deal. Thankfully he was wearing leather pants and had no puncture wounds but his lower legs were really bruised.
On one of my first Hog hunts, we were hunting a Boar that had opened up a teenager's leg fourteen inches. The story was he and his girlfriend had snuck off into the woods and had sex. Just when they'd finished and they were walking off, the Boar attacked. Best guess is the hormones in the air set him off.
On a two-lane highway, end of the working day leaving a nearby major city, a car hit a large Hog. The story was the sounder got spooked out of a Cornfield that was being harvested. It ended up being a multiple car accident and the Police were called. Both directions were blocked, the Police and multiple drivers and passengers were out in the street milling around when the sounder returned and got aggressive. The Police opened fire with their 9mm pistols and pissed off the hogs even more. The sounder eventually left. They called me and told me to bring my dog to track the wounded hogs, thinking this bunch was aggressive enough and were likely even more dangerous wounded. We tracked that sounder for twelve hours over two days and never caught up with them and never found any dead hogs.
Like I said 99 times out of a hundred they are going to head for the hills, it's the exceptions you have worry about.