Describe a time someone helped you

I'll tell you about something that happened a couple of years ago, when my car broke down on a motorway just outside the city, at around ten at night. I was driving back from a work trip, completely alone, and the engine started making this awful grinding noise before it just cut out on the hard shoulder. My phone battery was almost dead, and I had no idea who to call — roadside assistance in that area is patchy at best. What actually saved me was a lorry driver called Minh, who pulled over about twenty minutes later, apparently just because he noticed my hazard lights and assumed something was wrong. He didn't know me at all. He had a look under the bonnet, worked out it was probably the alternator, and instead of just leaving me there, he gave me a lift to the nearest town, waited with me until a mechanic he trusted opened up, and even lent me enough cash to cover the tow truck because my card wasn't working at the machine. What made it matter, I think, wasn't really the mechanical help — it was that he stayed. He could easily have just pointed me toward a garage and driven off, and nobody would have blamed him. Instead he treated a complete stranger's problem as if it were his own for a couple of hours, which restarted my faith in that if-anything-goes-wrong-someone-will-turn-up kind of optimism I'd sort of lost.