https://patch.com/illinois/tinleypark/tinley-woman-golden-retriever-attacked-pit-bull-walk-cops
A woman in IL was walking her 4 month old golden retriever puppy. She saw a child holding a leash, and looking for "her friend's dogs". When the woman saw the dogs across the street and saw the dogs were pit mixes, she told the child she couldn't help since she had her own puppy with her, and told the child to ask the adult owner of the dogs for help. The two loose pitbulls then ran across the street towards the woman and child, and the aggressive dog charged after the puppy and attacked it. When the woman tried to pry the pitbull's jaws off of her puppy's neck, the pitbull turned around and attacked her. The PB latched onto the woman's arm and dragged her down the sidewalk; a neighbor eventually beat the dog off of her with a piece of wood.The woman has bite wounds all over her arm, and injuries on her legs. When the police tracked down the owners, the owners said they had put the dogs in their backyard while they were packing for a trip. She knew the lock on her back gate was loose, and that the dogs periodically got out of her yard when they jumped against the gate hard enough.
These are zero mistake dogs, you cannot put a pitbull in a backyard that doesn't have a 100% secure fence. When other dogs get out they rummage through trash, bark, and are a nuisance. When pitbulls get out of their yard, they maul and kill innocent people and pets.