Calls for closely watched, carefully documented, and scrupulously interpreted accounts of programs in action, of undeclared (and potentially disabling) agendas, and of tacit refusals that masquerade as enthusiastic endorsements steadily pour in from clinicians and researchers. It isn't hard to see why. Within the irksome, recalcitrant, unsettled, misbehaving nest of hidden variables—what Hohmann and Shear once mischievously referred to as "the noise of real life"—often lie undetected arbiters of program success. It can be as elusive as the added value of unpaid work or as plain as the transportation costs no one asked about.