Apache crashing if user's www directory is deleted

[PsYxAkIaS (FreeBSD)]

Hello

I use apache/2.045 and virtual hosts like that:

<VirtualHost 66.151.30.81>
ScriptAlias             /cgi-bin/ /usr/homeb1/psyxakias/www/cgi-bin/
ServerName              www.psyxakias.org
ErrorLog                /usr/homeb1/psyxakias/www-logs/error.log
ServerAdmin             psyxakias at psyxakias.org
CustomLog               /usr/homeb1/psyxakias/www-logs/custom.log common
DocumentRoot            /usr/homeb1/psyxakias/www
</VirtualHost>

If a user removes his www or cgi-bin directory, apache crashes on next rehash/restart because it doesnt find the directory.

Any solutions? I was thinking to change their permissions with chown/chmod but as they have rwx on their homedir they will still be able to delete the dirs.