I had a lightning strike in my DHC8 out of MAN, bound for ABZ. The cabin crew reported ball lightning that apparently rolled down the aisle and out through the rear of the aircraft. I never saw it, we were struck in the middle of a weather avoidance turn shortly after departure (trying to avoid the very weather that clobbered us straight after departure. ILAFFT!!)and I spent several fraught seconds trying to get instruments back on line and resetting gens etc. The flight safety manager was cock-a-hoop with our report as he had once experienced the same thing in a Canberra and, until that point, was of the opinion tht nobody ever believed him and that it was said to be a mythical thing.....