Well I found out about Joe's when someone posted something to one of my groups freaking out.

Also, I think it's a good thing that the first person to reply to David's laughed that it was a joke, because there were quite a few pissed off replies that were like "This *better* be a joke" I wouldn't be surprised if someone started planning to forming a Save Rodney McKay campaign before they read the other comments, or realized what the date was. :P