nobody text-messages at 9:19am

I got a text message at 9:19 in the morning; it appeared to be a general broadcast from one of my friends to all of his friends, letting us know that he had changed his phone number.

Fine enough (and actually a pretty efficient way to do things -- just text everyone in the old phone rather than finding all their corresponding email addresses and emailing them, or, by God, calling them individually), but I found myself unduly startled by the phone's buzzing -- until I realized that nobody text-messages at 9:19am. Text messaging is like drinking -- you can start in the afternoon, but it really gets going after dark.