people have to realize dogs are animals and get into attack mode over the slightest things or have trained behavior to bite or could experience trauma that will make them aggressive when triggered by anything they see as a threat
the little dog barking at you and snarling would like to do to you what the pitbull did to her but isn't physically capable of it, that doesn't mean they aren't just as savage as the pitt they are just physical harmless and can't act on it
that's why those companion dogs were breed in the first place to be pets, a pittbull is not a damn pet, a big ass german shepherd belongs in a junk yard guarding some shyt not in a house, big ass rotweilers are not toy poodles meant for your amusement
people own these animals got of ego