Same. Most cars I've pushed have been random strangers.

Ive also stopped and helped fix cars on the side of the road. I've got a WRX, and driving to work one day I saw another WRX broken down. Maybe a teenager or early 20s. Only a little younger than me at that point. His radiator hose had been rubbing against a belt after some mod. He said his mechanic couldn't figure it out.

I took him to get a new hose. Showed him how to trim the edge of it to accommodate his mod, taught him to burp it, and sent him on his way.