I'm thinking of the morphia, you see,

I would probably have to say dying my hair purple. In my defense, it was more of a plum and (according to the box) going to come out in a week or so. However, I didn't take my highlights into account which soaked the color right up. My hair was various shades of plum/burgundy/auburn for about a month. And honestly, my highlights never lost their reddish tinge until I went back to my hairstylist. He just chuckled and shook his head at me when I told him. I enjoyed it though so I have no regrets. Here's to making rash decisions at four in the morning!