Pro tip: get the number of the stranger who helps you, even if it feels weird
On a Tuesday in March my car died in a parking lot in Tulsa and a guy in a work van jumped it, then gave me his number and said call if it happens again. Two weeks later it died again and he picked up on the first ring, walked me through a $12 fix over the phone. Has anyone else had a random favor turn into a real contact like that?