The cardinal sin, strange as it may seem in an institution of learning, is talking. There are others, of course - sins, I mean, and I seem to have committed a good number. Yesterday I was playing my record of Gielgud reading Shakespeare. I had brought my own phonograph to school (no one could find the Requisition Forms for 'Audio-Visual Aids' - that's the name for the school record player) and I had succeeded, I thought, in establishing a mood. I mean, I got them to be quiet, when - enter Admiral Ass, in full regalia, epaulettes quivering with indignation. He snapped his fingers for me to stop the phonograph, waited for the turntable to stop turning, and pronounced: 'There will be a series of three bells rung three times indicating Emergency Shelter Drill. Playing records does not encourage the orderly evacuation of the class.'