The methodological device of “deception,” or, as sometimes euphemistically labeled, “less than full disclosure,” does not enjoy much support among institutional review boards (IRBs) and a large portion of scholars in bioethics. The reasons for this have been documented sufficiently, beginning with the now-paradigmatic attack on the well-known study by Milgram and the unsavory study of Laud Humphries on male homosexual activities in public restrooms. But are the current attitudes interfering with some worthwhile approaches to data gathering that seem to have no other methodology of equal effectiveness?