public function toss()
{
$args = func_get_args();
$message = $args[0];
if (is_array($message)) {
self::$_errors = $message;
$message = implode('', $message);
}
unset($args[0]);
$out = $args ? vsprintf($message, $args) : $message;
self::$_errors[] = $out;
throw new \Exception($out);
}
