During one detachment (65 or 66) we did evening AEF for local squadrons. On one evening, we arrived to find a Devon in 'our' hangar on the back of a large trailer. Apparently, there was a slight 'hump' in the main runway (22) close to the threshold, and the Devon pilots usually touched down after this hump in order to avoid the embarassment of the hump launching them back into the air. Inevitably on this occasion, the pilot had touched down after the hump, only to find he had no brakes, and ended up on the Chesham - Hemel Hempstead road having taken off the undercarriage on the boundary fence. But on another evening, the SDO turned up just as we were preparing to start gliding operations; he mentioned he was taking a Devon up for some C/T, so we volunteered ourselves and the AEG cadets as 'cargo'. Honey Monster was also a staff cadet on 613, and he noticed an empty seat on the last trip, so quickly leapt back on board for his second ride of the evening!!