Responding to criticisms that their new no-trolling-allowed policy lacks teeth, Hack a Day writer Jack Buffington threw down the gauntlet Monday, announcing that, henceforth, anyone leaving a nasty comment about one of Jeri Ellsworth’s projects will receive a visit from the Pain Fairy. He even showed interested readers how to build the Pain Fairy’s weapon of choice, viz. a spike-knuckled black butyl rubber glove wired to discharge a disposable camera flash cap across the spikes. (Professional driver on closed course. Do not attempt.)