public function get( $slug = null ) {
		// Prevent weird stuff here
		$slug = sanitize_title_with_dashes( $slug );

		if ( is_null( $slug ) ) {
			return $this->notices;
		}

		if ( ! empty( $this->notices[ $slug ] ) ) {
			return $this->notices[ $slug ];
		}

		return null;
	}