I've noticed something. One day I post happy birthday first, the next day you post it first, and I post it first, and you post it first and so on. We've each been basically taking turns posting happy birthday first.
The thing that hits home is, I'm not doing it on purpose, I really lose track of time and get to it last on some days, but never consecutively. I'll call this the 1st Wonder of the Seven Wonders of Happy Birthday Wishing