Not me, this time:
With the Sea Harrier, when landing away from somewhere that had steps, it was quite normal to climb out of the cockpit, gingerly make your way a few paces towards the rear of the aircraft and then sit on the wing and slide down to the wingtip. Unfortunately, nobody had explained to one of the new guys that we slide down the middle of the wing and not the forward part. By the time he realised what was going to happen he'd built up a fair speed and was unable to stop his arse being assaulted by the vortex generators that he managed to slide over. The wing fence put paid to his sliding but, in doing so, added ankle lacerations to his bum injury list
Don't put your hand on the canopy rail when closing the gull-wing door of a TB10 with your other hand.....it hurts.
Don't look around the windscreen when landing a Luton Minor in a field recently occupied by cattle. This exposes your face to the stuff being flicked off the tyres. It is smelly and very difficult to wipe off. Definitely wear goggles if you do intend to do this as it is smelly, difficult to wipe off and stings your eyes like mad.