via) Via mayor Boris Johnson's office. Ad agency: Lida. I guess there's nothing logistically wrong with using ex-bees, but it is a bit morbidly ironic. The posters go up in the Tube starting Friday. Previously, the mayor used rape humor to stop Londoners from taking unbooked cabs. Previously: Live bee S.O.S. billboard. Related: ebay auction—deceased bumblebee.