Four, huh? At least it wasn't a huge breed.
I'm only counting bites that required stitches at 'attacks'.
My step-grandmother had, at one point, 9 of them. She got two papered dogs from good breeeders, intending to become a breeeder, but the first two litters they had that she could never bear to part with (she went on vacation for a week and my grandfather took all the dogs to the vet for a mass spay/neuter, she never quite forgave him for that).
They had zero training and were confined a lot, so they were bored thus they all had massive chewing issues. Two of the bites I got rescuing belongings from being chewed up, like my mothers FABULOUS $800 purse she'd won as a door price at some seminar. One bite I got rescuing one of the pups when it fell into the septic tank my grandfather was going to get pumped (don't blame the pup, it was hurt and scared and half drowned in a truly disgusting mess).
The other bite was, in my mind, the major issue. I was laying on the couch watching TV with the one of the pups curled up on my chest when all of a sudden she lunged forward and started snarling and biting. It was actually the first dog bite I ever received, at the tender age of six, and could have been very, very bad even with a dog that small, as she went for my face. She got in a couple bites because I was so startled it took me a second to react, and then she had a hold of my lip so I couldn't just fling her across the room.
While I was getting the stitches on my nose and mouth, my step-grandmother was taking the pup to the vet to have it put down, as she'd been watching and knew there was nothing I had done to provoke the attack. It's rare, but just like with people, some dogs are just not quite right.
Poor Dobo. What a good dog.
Pits can be absolutely wonderful with children, if they aren't from the inbred backyard fight stock that jerks who should be horsewhipped in the public square have. American Staffordshire Terriers (the real name of a pit bull) have a strong family instinct and are loyal and protective. They thrive when given some training and a 'job', even if that job is just 'keep an eye on the kids'.
I'm a little concerned for my new pup, because already people have mistaken him for a pit (he's a boxer/lab mix) and I swear, they are looking to get bit with the way they react to a perceived pit. The jerk at the lake the other day mistook him for a pit and started acting aggressively to 'warn him off' as we were passing by. Bo, having a defensive instinct towards his boy, interpreted this as a threat against his family and hackles went up. A crisis could have occurred if I had not had a firm grip on the leash, because Bo is still a pup and hasn't yet learned that some people are stupid and he should ignore them. And the crisis would have occurred all because of this mistaken notion that pits are inherently bad, vicious dogs.
There has been research to indicate that not all 'pit bull' attacks were perpetrated by pit bulls. People just see a vague muzzle shape on a dog of the approximate size and assume it's a pit bull. Make # 8 a bit thinner and give it a bit of white on it's jaw, and it would be Bo.