Simon didn’t really like the “hammerhead” nipple he’d gotten after having his nipple pierced (this is not uncommon!)… So he put a 2mm o-ring over the nipple and left it on for about four hours, applying ice periodically to ease the pain. He didn’t have a scalpel (hello, BMEshop), so with the aid of a blade, off it came! Looks like it turned out for the best.
Oh, and for BME/extreme members, the nipple removal section is here.