A variation on Varsity was the odour of recently discharged fire bottles. My one and only trip in the pig was Topcliffe to Wick and back on a night navex. Turning finals No 2 decided it had far too many pistons and chucked half of them over North Yorkshire. An observation was made from the front office, No 1 went through the gate, pull the handles on No 2 and we bounced down the track in a shower of sparks. Once stopped we went smartly down the ladder to be met by the most amazing pong and gallons of foam dripping off the wing.