As anyone who has dealt with bureaucrats or authoritarian regimes knows, sometimes it pays to act a little dumb. Glazing over good-naturedly in the face of a petty or corrupt demand can occasionally bring to light the inanity or cruelty of the situation in such a way as to prompt a momentary softening, be it through pity, impatience or even embarrassment. The stakes in such situations can be high: in the domain of the international with which this this journal is preoccupied, it might concern free passage on the one hand, or the right to remain, unhindered, on the other. More often the circumstances are banal, though not, for all that, without complexity. They point not only to the importance of stupidity as an enabling feature of life in complex and diverse modern societies, but also to the myriad forms it can take, from strategic ignorance, through the stupefaction necessary to manage the teeming stimuli of urban environments, to willing, if circumspect, participation in whichever confederacy of dunces makes up our place of employment, the organizations with which we affiliate, or the communities in which we participate.