http://www.engadget.com/2006/10/22/happy-international-caps-lock-day/
"Ah, it's that wonderful time of year again: the leaves are
changing, the air is getting crisp, and children everywhere are
looking under their keyboards to see what treats they've scored in
honor of International Caps Lock Day. Invented by greeting card
companies to fill the void between Trafalgar Day and Mole Day, Caps
Lock Day is the one occasion when lovers of capitalization can come
together with the haters from CAPSoff and hack-a-day and pay homage
to the little key that habitually blows up your spot when trying to
type a lower-case "a." So go ahead, join in the fun, and make sure
to annoy everyone on your buddy list by acting like a n00b and
"shouting" all of your messages to celebrate this holiest of
days."

OMGWTFBBQ