Writing Challenge

Write about a personal habit such as biting your nails: when it began, the actual way you do it. Are you a cuticle chewer? Do you start at a corner and bite down as far as you can before continuing. Have people commented about it? Anything you can think of, go for it. Let yourself have a riff, an improv. And maybe, when you're finished, the habit will leave you like blown dandelion fluff.