function groups_demote_member( $user_id, $group_id ) {

	if ( ! bp_is_item_admin() )
		return false;

	$member = new BP_Groups_Member( $user_id, $group_id );

	/**
	 * Fires before the demotion of a user to 'member'.
	 *
	 * @since 1.0.0
	 *
	 * @param int $group_id ID of the group being demoted in.
	 * @param int $user_id  ID of the user being demoted.
	 */
	do_action( 'groups_demote_member', $group_id, $user_id );

	return $member->demote();
}