For me, the whole notion of there being a professional conkers league, and its longtime judge, real old chap, using a steel replica to cheat, reads like something Douglas Adams could invent.
He didn't, but the mere fact that conkers are serious enough business that championships among adults even exist, that there are people for whom the game means so much that they engage in it for life, that one of the more prominent of the bunch even makes a conker of steel, and then an accusation of using it to cheat is raised — there should be a movie or a story about this. This is a quality urban legend material. Today it may be a nothingburger, but as years go by, it inevitably gets smoothed and a bit embellished here and there — just a little bit, you understand — and then the next Douglas Adams puts it in a setting where it is super hilarious and unmistakably British.