What Else Do My Electronics Do When I'm Not Home?

I got home today, and I saw the light flashing amber on my Airport Express. So I head into the den and see the light also flashing amber on my Time Capsule. I immediately suspect that something is up with Comcast, so I take my laptop out of my bag, wake it up, and open a web browser in hopes of coaxing Network Diagnostics to work some magic.

Web page loads fine. Email works fine. Nothing wrong with the internet.

A moment later a window pops up on my screen. My devices have discovered that there is a firmware update available, and would I please download and install it? Seems that they phoned home to Cupertino while I was gone and found out about all the latest news.