Wireless security is enforced at L1, in addition to or in lieu of other layers. A guide guides the knife holder in a nonround path to perform the trimming. The method also includes, in response to a wagering game player satisfying a wagering game criteria when playing the wagering game, enabling access to content on the mobile device, wherein the content is based on a context resulting from the wagering game player playing the wagering game. A conchal stint can be placed in the concha to maintain a desired anatomic shape of the concha. The ribs of the above lie very close to each other and run from top to bottom, in the approximate form of an arc, whereby the ribs of two adjacent plates cross each other and the ribs in the upper region of a plate are straight and inclined to the upper, in particular, horizontal plate edge and, in the lower region of the plate, run bent in the form of an arc.