There are few things worse in modern society than having a sick car. My car suddenly began stalling. The first time I was in a car park and didn't quite realise what had happened (other than it stopped). The second time, it was at a traffic light, the idle speed dropped a bit, then a bit more and just about the time I thought 'if it gets slower it will stall', it slowed a bit more and stalled.
I must have stalled at every traffic light between home and work last week at some point in the day. While I was getting better at it, to keep the car going required a foot on the brake and one on the accelerator. I was taught so strongly this is an evil thing to be avoided at all costs that it was very difficult to do.
All's well that ends well, the car went to the mechanic and has been fine since. But that was a very bad week when it just couldn't idle.