I am using the following code to call the "secondary image" into my template:
<?php if (class_exists('MultiPostThumbnails') && MultiPostThumbnails::has_post_thumbnail('page', 'secondary-image',$post->ID)) :
MultiPostThumbnails::the_post_thumbnail('page', 'secondary-image', $post->ID, 'fifth-image');
endif; ?>
Shouldn't this not try to display the image if it has been removed, as in, there is no secondary image set for a particular page?
http://wordpress.org/extend/plugins/multiple-post-thumbnails/