Auctioneer Richard Francis, of Rook Matthew Sayer in Prudhoe, Northumberland, helps run a monthly auction.

BBC: Gamble of homes with ?1 price tag?

Companies' monthly financial reports may run fine for years, then crash in February of a leap year when software tries to compare Feb. 29, 2012, to a nonexistent Feb. 29, 2011.

WSJ: For Some, All in a Leap Day's Work

Jalopnik based that question on a story last week from Quartz, the business site run by The Atlantic Monthly.

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