Do you guys remember "balloon boy?" He and his family are my most vivid memory of a PR stunt gone wrong - and WOW it went way wrong - but probably not in the way you think.
The story most of us know is that the family faked the boy accidentally taking off in a home-made balloon when he had been hiding in the attic the whole time. They were turned into memes, there was jail time involved, and tons of fines. That all sounds pretty bad, but it turns out that story may be a PR spin in and of itself.