In choosing the color of a single toolbar on one of its sites, Google served up pages with 41 different shades of blue to see which one people were most likely to click on.
Madness string 1422
It's always going to be dangerous no matter what. People don't like to hear that they're wrong or that they're doing bad things. But there's always going to be someone who needs help, and if she's serious about it, it's not something that's going to end.