gladwell dot com / Big and Bad: "And what was the key element of safety when you were a child? It was that your mother fed you, and there was warm liquid. That's why cupholders are absolutely crucial for safety. If there is a car that has no cupholder, it is not safe. If I can put my coffee there, if I can have my food, if everything is round, if it's soft, and if I'm high, then I feel safe. It's amazing that intelligent, educated women will look at a car and the first thing they will look at is how many cupholders it has."

I'll bet the woman who backed into me at McDonalds had plenty of cupholders...