In the era of the Hero of Trains, currently under the rule of Malladus – possibly. Multiple eyewitness accounts state that the Princess never actually left the throne, but did exhibit an odd change in eye color, personality, and tendency towards evil laughter. Location – some dark void thing with train tracks, during the fight against the Demon Train for the future of Hyrule:
When Malladus had built the Demon Train, he'd mostly done a fairly decent job. It was large, bulky, and built like a tank, with laser cannons and a face that could scare its own mother, if it had one. It was one of the fastest machines on the rails, had a sleek paint job, and it was even fuel efficient.
But for some bizarre, unexplainable reason, it also had a self-destruct, located right behind the face at the front of the Train.
Granted, it was heavily fortified, very well-hidden, and infuriatingly difficult to reach, but it was still there. When activated, it triggered a series of events that led to a influx of gas from redirected exhaust and... well, simply put, it created a very big boom and lots of fire and screaming. And it was definitely a last resort. He never intended to use it. Heck, the only person who knew it existed was himself, and that was only because he'd built the thing.
He'd never particularly regretted it before. But that was before he'd gotten into the race with the little Hero and his ghost Princess and a cannonball from that accursed Spirit Train slammed straight into the face of his own Train. The face, which both hid and protected the self-destruct that was now activated because of the cannonball.
Malladus would have smacked himself, but he was too busy trying to keep the Train from crashing as it exploded.
"...Did we hit the fuel tank or something?" Zelda wondered as the Demon Train went down in a plume of fire – literally sinking through the dark void floor and out of the place entirely.
The Hero frowned. "I doubt the bellows would be in the face, but..." he trailed off and shrugged, indicating that he had no idea.
They both stared for a few moments longer before remembering what they were doing there in the first place, and followed the Demon Train down where they proceeded to smack Malladus straight out of Zelda's body.
Link blinked once, very slowly, and rubbed his eyes disbelievingly. On the table, the schematics for Malladus's Demon Train were spread out in full detail, with one particular section in the center.
"...That makes no sense," he said slowly. "That... that literally makes no sense. It's a Train, why does it even need a self-destruct in the first place?"
Rule Number Nine: I will not include a self-destruct mechanism unless absolutely necessary. If it is necessary, it will not be a large red button labelled "Danger: Do Not Push". The big red button marked "Do Not Push" will instead trigger a spray of bullets on anyone stupid enough to disregard it. Similarly, the ON/OFF switch will not clearly be labelled as such.