OS X Easter Egg in Sharing System Preference

I think I’ve run across something of an Easter egg in OS X. After doing a clean install on a Rev. A TiBook, I saw an odd message the first time I opened the Sharing control panel. After switching to a different tab and back again, the expected text had returned. Fortunately, I grabbed a screen shot while I had the chance. I haven’t tried to repeat this behavior. But I am rather curious: who’s Timmy?