I left iChat open but set my status to away when I went out for lunch, and when I got back and touched my computer again it told me “Welcome back! Would you like to set your status to Available?”
I like my computer being glad to see me. I’m downright happy to be welcomed by my tools. Heck, I even like that when I turn on my DVD player it displays a friendly “HELLO” in retro 1980s digital clock letters.