New moderation rule for the blog

In light of the Ebola epidemic, I'm afraid I'm going to have to take the temperature of all commenters before allowing them to post anything. I'm sorry but I must protect my own health and that of visitors to this blog.

So beginning immediately, another layer of moderation has been added. Here's how it will play out. Once you've successfully identified the usual Captcha characters, a thermometer will thrust itself from your computer screen. Simply place your mouth around the thermometer and slip it snugly under your tongue. Be patient! The computer will provide an alert to let you know when you're done.

If you hear a pleasant chime, this means you do not have a temperature and thus do not have Ebola. Click "Lucky" and your comment will be posted.

If, on the other hand, you hear the clang of a mournful church bell, get thee to a nunnery or a hospital, your choice. (Pssst: the hospital will probably work out better, you know, in the long run.)

That is all. You may now return to your normal lives.