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"I'd never seen a component physically blown off the motherboard before!"

Telco satellite ground link. Sudden power loss. Back EMF blew a couple largish transistors. Turned the steel caps inside out, and fired 'em through the (admittedly thin) steel case of the rack mounted equipment, and then through the acoustical tile ceiling. I was in the next room, I jumped about a foot and looked around in time to see a small trickle of dust falling from the hanging ceiling. Went next door and discovered three or four satellite techs with dazed looks on their faces. Nobody hurt, thankfully. The next day I remembered the dust falling, and retrieved one of the caps from above my office. Seems it bounced off the underside of the roof and still had enough force to shift the tile when it landed. I carried it in my pocket for a couple years as a curio, and still have it in my trophy case.