sub admin,
  my dollar self equals shift,
  dollar self to[1] admin or equals do,
  require NVC DB user,
  NVC DB User to[1] admin.

##</code><code>##

  sub admin {
      my $self = shift;
      $self->{admin} ||= do {
          require NVC::DB::User;
          NVC::DB::User->admin;
      };
  }