Much like those that tell their stories on 2ch, there are those that do so on 4chan. About two years ago, a man decided to do something crazy. He asked his sister if she'd like him to brush her teeth after recieving inspiration from a thread on 4chan's /a/ board. He then set out to speak of the experiences following that jump, all under the pen name "Oral Hygiene Brother".
It is really a sweet story, and worth a quick read.