Allyson, in Firefly:
It's the Naked Guy at the Gay Pride Parade Theory.
I've been to many Gay Pride parades, and mostly, the people marching are well-dressed, some carrying banners for local businesses, moms and dads with strollers.
It'll be a beautiful, perfect, lurvely day and you'll think to yourself, "Well, this is sweet PR, not a bunch of leering child molesting freaks in assless leather pants kidnapping straight passerby to commit acts of rape and whatnot, who can argue with this?"
Sure enough, on the evening news, the only coverage will be of the sole naked man with a pink triangle painted on his right asscheek, and will be captioned, "Gay Pride March"
You'll see no cute babies in strollers, no business-suited GQ looking members of the freaking Local Business Association. You'll just see the camera following the naked guy.
One ass sends a bushell of fucking apples, UPN gets evacuated, and all else is lost. Just ONE person can fuck it all up. It's the Naked Guy at the Gay Pride Parade.