blockOptions.cgi, afterworkOptions.cgi and others are requests from visitors who have tried to access your website from behind WebSense content filters and were likely blocked (or only allowed to see your website during certain sanctioned hours.) I discovered this after seeing these types of requests in my own referrer reports for guyzero.com.
If you see these types of accesses, you can possibly check for other accesses that occurred at the same time to discover which IP address or domain was trying to access your website.
Its not clear what factors can cause a website to be blocked. They might have some hand-created blacklist and there is likely also some automation — perhaps having certain words or phrases contained on any of your pages will get your entire site blocked. A site might be blocked because another website at the same IP (most webservers host multiple sites) had content that tripped the filter. Websense also mentions some kind of mysterious “reputation” criteria in their documentation.
I believe, but am not certain, that blockOptions.cgi referred requests are from the IT administrator at the company that is running a Websense filter, probably checking up on your content to see what their employees are trying to browse during work hours.
Its also not clear what you can do as a webmaster to have your site unblocked. A quick perusal of the Websense company website did not provide an easy link to appeal my suspected block. There is a way to navigate to open a Service Request, which I suspect is the right venue, but you are required to do the standard website registration rigmarole in order to start the request, so I lost interest and gave up. Besides, it feels kind of cool to be on a list of banned websites somewhere, especially given all my dirty Android tips and subversive web developer links.