This advertisement says petting a pit bull is risky behavior, and implies eating their food is safer. It portrays these dogs in a negative manner and they are attacked enough in the media. At the very least, it is blatantly false advertising.
The ad can be heard here: http://www.youtube.com/watch?v=NMbSXu90OMA
Jennifer Hurowitz started this petition with a single signature, and won with 4,000 supporters. Start a petition to change something you care about.