Arnie is probably better off not running around with that name anyway, regardless of how innocent the name choice, some people could misconstrue it and pre-judge the person behind the character.
If I'm not mistaken, wouldn't this be one of those times where the player could come up with another name and, pending GM approval, have a nice GM change their name back to something of the player's choosing? Then again, maybe it turned out to be a happy accident and Arnie digs the name "Dinicile Cayatera."