There are certain traditions that date back to well over a century, and then there are those more or less unique to the modern era in America: there's deep-fried turkey for that extra-crispy taste, followed by the call to the fire department. Then, having just given thanks for all with which you've been blessed, it's on to the post-Thanksgiving slug-a-thon known variously as "Black Friday", "Black-and-Blue Friday", or "Whack Friday".