kyr01 - 12:45 pm on Aug 24, 2003 (gmt 0)
Yes, I know that nothing that's not under your direct control as a webmaster can harm your site.
On the other hand, if I take a 'disposable' domain, fill it with hidden text and sneaky redirects to my own site, the only thing they can possibly do is remove the disposable site from the index. Pretty boring game, I guess...
(and, most important, given this possibility, why should you worry about creating .js files on your own domain, using robots.txt to hide them and taking risks anyway? It seems much better to do this on a different domain redirecting to the first one, if you are really such a 'bad' guy)