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He also flew ice patrol from [https://en.wikipedia.org/wiki/Summerside,_Prince_Edward_Island Summerside] in [https://en.wikipedia.org/wiki/Prince_Edward_Island Prince Edward Island] to [https://en.wikipedia.org/wiki/Iqaluit Iqaluit] in [https://en.wikipedia.org/wiki/Baffin_Island Baffin Island] in an [http://www.airliners.net/photo/Nordair-%28Environment-Canada/Lockheed-L-188C%28IR%29-Electra/0070408/M/ Electra L-188] used for ice reconnaissance. During the same period he was a columnist for <i>Driving Magazine</i>, and volunteered as Chief Pit Marshal (after training in fire fighting at [https://en.wikipedia.org/wiki/List_of_oil_facilities_in_Montreal#BP_Montreal_East.2FAnjou_Refinery BP Montreal East/Anjou Refinery]) at [https://www.lecircuit.com/ Le Circuit Mt Tremblant] during the heyday of [https://en.wikipedia.org/wiki/Can-Am Can-Am racing], and after training in fighting gasoline and methanol fires at a BP oil refinery.

In another life David raised [https://en.wikipedia.org/wiki/Hereford_%28cattle%29 Polled Hereford cows] cow-calfs and [https://en.wikipedia.org/wiki/Arabian_horse Arabian horses].