Apropos to this thread ... I was just flagged down in a drugstore parking lot by a lady whose older Jeep wouldn't start.

No problem, went for my tool bag ... and realized I had tossed it in another vehicle that I'm repairing. But packrattery has its rewards -- I had a lightweight set that I got for free, and they were still stuffed under the seat. They barely reached with the vehicles touching, but we got her going first time. Even found a good frame ground on the first try; that never happens.

So there's my good deed for the day (which never goes unpunished, you know, so I'm a little wary).