Wasn't there but remember a story from the sixties of an air show put on at a newly opened dirt strip at a small country town. DCA were present and went around gathering the regos of all the present aircraft, mixed bag of single Cessnas, Pipers, Tigers, Austers. When asked why the answer was that the strip was considered not up to required standard because of the presence of a power line at one end and so all operators would be getting a please explain. DCA chaps were reminded to be careful when departing in their Aero Commander, and the dangers inherent in twin operations. Nothing more heard. Course it could have just been bar talk.