As for bad things that turned out good, I think that's a great idea for a thread! Sort of like the song "A Taoist Tale".

It was 1973. I'd graduated high school and been at a party into the wee hours, doing a few of the mood-enhancing things one did at parties in the 70s - in copious quantities. I got in my car to go home and my battery was dead so I went back to the party house. A guy who'd been at the party and left earlier stopped back after my unsuccessful attempt to leave, and gave me a ride home. When I returned for the car the next day, the battery was fine. My guess is this guy disconnected it and hung around so he could make sure I got home OK. We never were great friends - mostly friendly acquaintances. I was mad as hell at the time to think someone decided FOR me I shouldn't drive, but I obviously didn't have great judgement skills. I'll never know what might have happened, but I may very well owe him my life.

And maybe no one disconnected the battery, but would have been just
TOO weird!