The main contributing factor to pit bull misconceptions is definitely the media. I saw this story on the news last night and was devastated to hear Animal Control's advice that the woman carry a shovel or a 2 x 4 for protection. All the pit bull did was bark when he saw her (and if he's anything like Bruce, his tail may very well have been wagging the whole time!). No growling, no bites, no aggressive behavior. I wonder what Animal Control would have advised if a black lab barked at her?
Oh wait, she wouldn't have called...