diff --git a/lib/Lacuna/DB/Result.pm b/lib/Lacuna/DB/Result.pm
index d72b88e7..40f69c9e 100644
--- a/lib/Lacuna/DB/Result.pm
+++ b/lib/Lacuna/DB/Result.pm
@@ -3,9 +3,7 @@ package Lacuna::DB::Result;
 no warnings qw(uninitialized);
 use namespace::autoclean -except => ['meta'];
 
-use base 'DBIx::Class::Core';
-
-__PACKAGE__->load_components('TimeStamp', 'InflateColumn::DateTime', 'InflateColumn::Serializer', 'Core');
+use base 'Lacuna::DB::ResultBase';
 
 __PACKAGE__->table('noexist_basetable');
 __PACKAGE__->add_columns(
@@ -13,21 +11,4 @@ __PACKAGE__->add_columns(
 );
 __PACKAGE__->set_primary_key('id');
 
-# override default DBIx::Class constructor to set defaults from schema
-sub new {
-    my $class = shift;
-    my $self = $class->SUPER::new(@_);
-    foreach my $col ($self->result_source->columns) {
-        my $default = $self->result_source->column_info($col)->{default_value};
-        $self->$col($default) if (defined $default && !defined $self->$col());
-    }
-    return $self;
-}
-
-sub random {
-    my $self = shift;
-    return $self->search( undef, { order_by => 'rand()' })->first;
-}
-
-
 1;
diff --git a/lib/Lacuna/DB/Result/SitterAuths.pm b/lib/Lacuna/DB/Result/SitterAuths.pm
new file mode 100644
index 00000000..8762f557
--- /dev/null
+++ b/lib/Lacuna/DB/Result/SitterAuths.pm
@@ -0,0 +1,36 @@
+package Lacuna::DB::Result::SitterAuths;
+
+use Moose;
+use utf8;
+use DateTime;
+
+# no "id" column.
+extends 'Lacuna::DB::ResultBase';
+
+__PACKAGE__->load_components('TimeStamp', 'InflateColumn::DateTime', 'InflateColumn::Serializer', 'Core');
+
+__PACKAGE__->table('sitter_auths');
+__PACKAGE__->add_columns(
+    baby_id   => { data_type => 'int',      is_nullable => 0 },
+    sitter_id => { data_type => 'int',      is_nullable => 0 },
+    expiry    => { data_type => 'datetime', is_nullable => 0 },
+);
+__PACKAGE__->set_primary_key('baby_id','sitter_id');
+
+__PACKAGE__->belongs_to('baby', 'Lacuna::DB::Result::Empire', 'baby_id', { on_delete => 'cascade' });
+__PACKAGE__->belongs_to('sitter', 'Lacuna::DB::Result::Empire', 'sitter_id', { on_delete => 'cascade' });
+
+sub _new_auth_date
+{
+    Lacuna->db->resultset("SitterAuths")->new_auth_date;
+}
+
+sub reauthorise
+{
+    my ($self) = @_;
+
+    $self->expiry($self->_new_auth_date);
+}
+
+no Moose;
+__PACKAGE__->meta->make_immutable(inline_constructor => 0);
diff --git a/lib/Lacuna/DB/ResultBase.pm b/lib/Lacuna/DB/ResultBase.pm
new file mode 100644
index 00000000..e0b31280
--- /dev/null
+++ b/lib/Lacuna/DB/ResultBase.pm
@@ -0,0 +1,25 @@
+package Lacuna::DB::ResultBase;
+
+use namespace::autoclean -except => ['meta'];
+
+use base 'DBIx::Class::Core';
+
+__PACKAGE__->load_components('TimeStamp', 'InflateColumn::DateTime', 'InflateColumn::Serializer', 'Core');
+
+# override default DBIx::Class constructor to set defaults from schema
+sub new {
+    my $class = shift;
+    my $self = $class->SUPER::new(@_);
+    foreach my $col ($self->result_source->columns) {
+        my $default = $self->result_source->column_info($col)->{default_value};
+        $self->$col($default) if (defined $default && !defined $self->$col());
+    }
+    return $self;
+}
+
+sub random {
+    my $self = shift;
+    return $self->search( undef, { order_by => 'rand()' })->first;
+}
+
+1;
diff --git a/lib/Lacuna/DB/ResultSet/SitterAuths.pm b/lib/Lacuna/DB/ResultSet/SitterAuths.pm
new file mode 100644
index 00000000..05665a14
--- /dev/null
+++ b/lib/Lacuna/DB/ResultSet/SitterAuths.pm
@@ -0,0 +1,57 @@
+package Lacuna::DB::ResultSet::SitterAuths;
+
+use Moose;
+use utf8;
+extends 'Lacuna::DB::ResultSet';
+use DateTime;
+
+sub remove_auths_from_alliance
+{
+    my ($self, $user) = @_;
+
+    # if it was a name or id, convert to object so we can find the alliance_id.
+    $user = $self->user($user) unless ref $user;
+
+    my @ids = Lacuna->db->resultset('empire')->
+        search(
+               {
+                   alliance_id => $user->alliance_id,
+               }
+              )->get_column('id')->all;
+
+    $self->search({ baby_id => { -in => \@ids }, sitter_id => $user->id })->delete;
+    $self->search({ sitter_id => { -in => \@ids }, baby_id => $user->id })->delete;
+}
+
+sub new_auth_date { DateTime->now->add(days => 60) }
+
+sub hire_sitter
+{
+    my ($self, %opts) = @_;
+    die "Invalid hiring" unless ($opts{sitter} || $opts{sitter_id}) && ($opts{baby} || $opts{baby_id});
+
+    my $sitter = $opts{sitter} || $self->empire($opts{sitter_id});
+    my $baby   = $opts{baby}   || $self->empire($opts{baby_id});
+
+    __PACKAGE__->new({
+                  sitter_id   => $sitter->id,
+                  baby_id     => $baby->id,
+                  expiry      => new_auth_date(),
+              })->insert;
+}
+
+sub clean_expired
+{
+    my ($self) = @_;
+
+    my $db = Lacuna->db;
+    my $dtf = $db->storage->datetime_parser;
+    my $too_old = $dtf->format_datetime(DateTime->now);
+
+    $self->search({ expiry => { '<', $too_old } })->delete;
+}
+
+#sub 
+
+no Moose;
+__PACKAGE__->meta->make_immutable(inline_constructor => 0);
diff --git a/var/upgrades/sitter.sql b/var/upgrades/sitter.sql
new file mode 100644
index 00000000..4cd40f1a
--- /dev/null
+++ b/var/upgrades/sitter.sql
@@ -0,0 +1,12 @@
+-- Table: sitter_auths
+--
+CREATE TABLE sitter_auths (
+  baby_id integer NOT NULL,
+  sitter_id integer NOT NULL,
+  expiry datetime NOT NULL,
+  INDEX sitter_auths_idx_baby_id (baby_id),
+  INDEX sitter_auths_idx_sitter_id (sitter_id),
+  PRIMARY KEY (baby_id, sitter_id),
+  CONSTRAINT sitter_auths_fk_baby_id FOREIGN KEY (baby_id) REFERENCES empire (id) ON DELETE CASCADE,
+  CONSTRAINT sitter_auths_fk_sitter_id FOREIGN KEY (sitter_id) REFERENCES empire (id) ON DELETE CASCADE
+) ENGINE=InnoDB--