Lighting struck so hard

Maybe if the ballast is bad, the ballast gives an initial high voltage charge to "kick on" a flourescent light. Often times flourescent bulbs are still good but the ballast goes bad. I also know that flourescent bulbs will light in the presence of high voltage so I think it could happen.

Supposing it's incandescent, the filament often parts just enough for an open circuit. The induced voltage would certainly be enough to bridge the gap. The metal would then warp and move about from the heat produced. If by chance it moved in the right direction, it could very well fuse itself back together. Sometimes this can be observed by gently shaking a dead bulb with power applied.

Warning, can get really fucking hot really fucking fast.