Changing administrator privilage into standard while no other administrator accounts active
User accounts in System Settings have an option to add or remove users. Also, there is an option to change privilege to standard or Administrator. However, changing privilege of an administrator into standard is possible even if there are no other active administrator accounts. If we change current administrator into standard user, there will not be any administrator in that machine. And this leads to a worst case scenario such as no one can manage that machine as administrator. This feature must be controlled in a way that if there are not more than one active administrator accounts, one should not be able to change the only administrator's privilege.
DistroRelease: Ubuntu 11.10
Package: gnome-system-tools (not installed)
Uname: Linux 3.0.0-12-generic i686
Date: Thu Nov 17 12:22:25 2011
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release i386 (20111012)
UpgradeStatus: No upgrade log present (probably fresh install)