if( $shit == false )
{
// Term don't exist, throw a 404
header('HTTP/1.1 404 Not Found');
global $wp_query;
$wp_query->set_404(); // Needed for the body class
$_GET['e'] = 404; // Set the variable for the error code (you cannot have a querystring in an include directive).
include get_template_directory() . '/404.php';
exit();
}