Even in this story, which is a great article about pit bulls that saved a chihuahua from being killed by coyotes, they manage to get in an anti-pittie crack.
From the chihuahua's owner, talking about the pit bulls:
"They were circling him and sitting by him. Making sure he was all right," said Robinette. "So it needs to be said that there’s some good (in pit bulls) and not all bad."