Such failures he would easily laugh off.
This was not his only visit back to Buckinghamshire, for he spent a weekend, probably in December 1946, discussing D. Gabor's new theory of communication19 with Don Bayley.
This time he distinguished himself by fainting when he grazed himself shaving.
He had told Don long before about this reaction to blood, but this was the first time Don had seen it happen.
There had also been an occasion in October 1945, when he, Don Bayley, Robin Gandy and 'Jumbo' Lee met up to go to a lecture on wartime radio work at the Institute of Electrical Engineers.
Afterwards they had gone to Bernard Walsh's oyster restaurant.
Alan had cycled into London from Teddington and had parked his bicycle outside the Soho restaurant, from which it was duly stolen.
For him to cycle the fifteen miles was not entirely characteristic, since he would quite happily take in such distances on foot.
On arrival at Teddington he had joined the local Walton Athletics Club, and had taken up running as a serious amateur.
He was a long-distance runner, rather than a sprinter; it was his stamina that gave him the edge in races over three miles in length.
During this period he would spend two or three hours every day on training, and would run for the club on Saturday afternoons.