The fourth in our series of guest appearances by Beatles scholar-investigator Joshua Glenn could be subtitled “or, Ringo Observed in his Natural Habitat.”  Following on from ideas—or suspicions—about the secret lives behind familiar Beatles-associated faces first elaborated in “Big Mal Lives!,” Glenn uncovers the identity and unravels the agenda of the flamingo-like gentleman seen dancing sociably with, or at least in proximity to, Ringo in the nightclub scene of A Hard Day’s Night. Who but Glenn would have suspected this brief, rather happy scene was a window on the dark doings of anthropologists and punk rockers—the two most wantonly antisocial groups of [...]