Tomorrow is registration day for the 2007 North American Courier Championships, or NABCCC. The extra C, we think, is for "combustible," because, hey, isn't tomorrow also Critical Mass? And hey, didn't we hear that bike couriers and Critical Mass can sometimes have an uneasy relationship? And wait a minute -- isn't that the exact same day that they're planning a zombie flashmob downtown, in the same neighborhood that CM usually rides, and a few blocks away from where the NACCC has its registration? And isn't there going to be a pillow fight at exactly the same time and place?

Wear a helmet.

UPDATE: After the jump, Zombie instructions.