The sort of teacher you're looking for has about 15 to 20 thousand hours. Treat everyone else with a modicum of caution.
Cork's airfield is an unlucky one. I believe it has a p'sóg, so to say. It was built against the wishes of the land-owner, perhaps this is the reason. When you start hearing the wailing of the bean s'dhe, don't be afraid to get your feet back on terra maca =).