I’ve known some lovely pit bulls—but I don’t turn my back on them. We have several that come to play at our doggie park where I live, and they are beautiful non-threatening well behaved animals.
My smaller dog plays often with one of the pits—they have a lot of fun together, but you can bet I keep a close eye on them.
Actually, there are two black labs that are very aggressive, and these two have been banned from the park.
A friend of mine was almost killed by his own “lovely pit bull.” In his living room while he was on the phone. Daisy just snapped! Over 80 stitches!