Prevent viewing of all pictures of Fonzi during the midnight hour or any files during any time period by using this handy htaccess ruleset:
# prevent access during the midnight hour
RewriteCond %{TIME_HOUR} ^12$
RewriteRule ^.*$ - [F,L]
# prevent access throughout the afternoon
RewriteCond %{TIME_HOUR} ^(12|13|14|15)$
RewriteRule ^.*$ - [F,L]
