How to ignore ‘Sticky Post’ when displaying latest post title?

Guys I’ve this piece of code working, but my sticky post still appear in my list of latest post title even after excluding it’s category. Plz advice. Thx

<?php if (have_posts()) :query_posts($query_string .'&cat=-8'); ?>
<?php query_posts('showposts=1'); ?>
<?php while (have_posts()) : the_post(); ?>
<a href="<?php the_permalink() ?>" rel="bookmark" title="Permanent Link to <?php the_title(); ?>"><?php the_title(); ?></a>
<?php endwhile;?>
<?php else : ?>
<h2><?php _e('Not Found'); ?></h2>
<?php _e('Sorry, no posts matched your criteria.'); ?>

<?php endif; ?>