Maybe the great American worker knows something the eggheads in Washington and on Wall Street don't. Or more likely, an increasing amount of Americans may have finally had enough of working longer hours for shorter pay, and are striking out on their own and setting up an office in the garage, or heading off to North Dakota and Western Pennsylvania to cash in on the shale oil boom. Nobody really knows. But economists and maybe even nervous employers will be keeping a close eye on next month's JOLTS survey. Some of their best workers may, indirectly at least, be on it.