About a month ago, one of the cars just decided it wouldn't start. It's an older car, close to 170k miles on it, and it's been in an out of the shop for the last few years. The hinky nature of it is what prompted us to buy the new car.
It seemed to be trying to turn over, but it just wouldn't. I put it in neutral and let it roll to a different position (yes, that could actually work) but it still didn't start.
Every day I tried to start it, same result. We decided that if I could just get it going, I could drive it to the mechanic's to see what was wrong. We hoped to avoid a tow fee, especially since our excellent mechanic is barely a mile away.
After a week, and resigned to the eventual towing fee, I cranked it one morning... and it started. Took it to the mechanic. They had it for a day and it started every time. They said the plugs were a little worn and so they replaced them. Total expense was well under $100.
This story is a metaphor.