public function block($model)
    {
        $deletedAtLeastOne = false;

        if ($this->friends->count()) {
            foreach ($this->friends as $friend) {
                if ($friend->getKey() == $model->id) {
                    $friend->pivot->delete();
                    $this->resetFriends();

                    $deletedAtLeastOne = true;
                }
            }
        }

        return $deletedAtLeastOne;
    }