Fierce foalhood bullying taught Applejack to keep a certain hobby of hers to herself. Years of holding it in has made her a bit skittish, but like every pony with a secret, it was only matter of time until she got caught.
Routine day with a dirt cheap brush, then a week goes by and it goes untouched. Then two, then three, then a month, and the rest of your life you beat yourself up. - Aesop Rock, "Rings"