LOL sunadmn,
Why do we bother about things root cant do? Since, they are things root CANT do. Just check out the things which root CAN do, it would help! As we are admins, by saying admins, we really do things which only root CAN do.
Its like, what are the options which are not supported with #ls. It does not really bother since, though, we know those, they cannot be used. What's the use? LOL..
-DB