What are you talking about? That's not a pit bull, or a staff terrier. It's a Staff Terrier/LABRADOR mix!!! LOL!! Seriously, that's what most people do out here with their bully breeds because of the stereotype against them. If you have papers saying your dog is a LABRADOR mix (from a kind vet, of course) you have less to worry about as far as harassment goes. Just thought I'd mention it!
That is such a cute little puppy! You lucked out on your find! Here's some advice:
This breed is animal aggressive by nature. Period. No matter how much training you give the dog, you must ALWAYS keep an eye out for possible fights, especially with other pit bulls and other bully breeds. Just because Brutus and Spot get along on Monday DOES NOT mean they will get along Monday night!
These dogs ARE NOT people aggressive by nature! Socialize, socialize, socialize! Keep in mine, however, that they are VERY territorial, and WILL guard their property against animals and strangers. Some pits don't make good guard dogs because of how people loving they are, but some will (like ours) and although ours isn't an attack dog we do have to take precautions with strangers, such as an electric fence and a muzzle.
Spay/Neuter! If that pup is three-four months old already TAKE HIM IN! We got our male neutered at 4 months, and he's a wimp! He's been attacked by our female and fought back, but he's terrified of her and won't even go near the kennel when she's in it! I attribute this to him being neutered, since I know that Tuna is not a fight-picker. Also, fixing your dog promotes health and increases their life span, while also preventing the possibility of random homeless litters of puppies.
Once again, congrats on your find! Do some research on training, cause these dogs are BRILLIANT! You could teach him to sit almost instantly! Please remember that these dogs are very intelligent and physically active, and require a lot of care and attention. They'll try to become the long lost child of the family, no joke. Ours gets sad if he sees my son get tucked in and I don't tuck him in as well. He got over that one REAL quick, but still, they're smart. Good luck!