A "weaker" version of this is to ask your driver personal questions. Obviously stop if they make it
really clear they don't want to talk at all, but there's a psychology about talking to strangers you know you won't see again that lets many people open up in ways they wouldn't in maybe any other circumstances. I've
- Seen more baby and kid-milestone photos than I can count.
- Been told a brutal war story by a tow-truck driver in Kentucky ("did you know blood from the liver is almost black?") that - though he didn't say it, explicitly - I don't think he'd ever talked about to anyone.
- Heard about someone's life's-work in AIDS prevention.
- Learned about the Philippine Civil War from a former airforce Colonel. (Highlight: he and his best friend / roommate in the military academy chose different sides. They privately promised each other that they'd find a way to communicate if their units were ever ordered to attack the other.)
- Heard first-hand about the horrifying obstacles the US government placed in the paths of Afghani translators (for the US Army) trying to immigrate to safety in the US.
- Met a Singaporean former mercenary, who told me all about doing private security for illegal gold mines in New Guinea. He was very matter of fact (and entirely unrepentant) about having indiscriminately shot local villagers and government forces. Several of his buddies were killed by bow and arrow in an attack during which he cut and ran ("their families are still mad at me"). It was all a madcap adventure, as far as he was concerned, and then he showed me pictures of his boat.
Looking at that list, I guess don't do it if you don't want to be trauma-dumped, but I'm quite socially awkward, so you don't have to let that stop you. Most people don't seem to care - they have stories they want to tell, and will tell them, if you'll listen.