Again, not a phone call.
I was about 22 years old, and about to get on a train to go to a university interview for a teacher training place. There was a very particular train I had to get, in order to be on time. The sort of "one an hour" type trains. It was about 5+ minutes before the train was due to arrive, when it suddenly dawned on me that I hadn't paid for long enough parking in the train station car park.
It was my parents car, I didn't drive very much back then, and just getting to the station was a trial for me, never mind what was coming that day.
I didn't have enough time to run back to the car park and pay for more, and I was getting in a flap on the platform.
A woman, aged about 40, approached and asked if I was okay. I threw a jumble of words at her and explained my issue.
She said she'd be back long before me, and she could top up the parking if I liked? I did like.
I described the car and where I'd parked it, threw a handful of money at her (way more than she needed) for the parking, and got on my train.
Many hours later, I returned to my car, to find an extra parking voucher stuck to the windscreen, and, adorably, a careful pile of coins balanced on the windscreen wipers.
I drove home crying at the simple kindness of strangers.
I've no idea who she was, I never got a name, and I wasn't in my home town. But I've never forgotten her and her kindness. It's something I've carried with me over the years, and I make a point to try and stop and offer comfort to strangers in distress. Just a simple, "Are you okay? Do you need anything?"
And to that woman at Rugby railway station in about 2007, thank you.