Just that really... new neighbours (less than a year), not particularly close (friendly when I first moved in but a series of events has lead to some distance).
Was asked out of the blue if I had comprehensive insurance, and if so could they borrow my car as needed to sort something out at their buy-to-let (defrosting a boiler condenser pipe, so not an emergency!)
Been made to feel a bit mean, though I lied and said I didn't have the insurance.
YABU - Perfectly reasonable to ask an acquaintance if you can borrow their car, and it's mean of them not to say yes
YANBU - No, I wouldn't lend my car to someone (except maybe close family)
There's been a whole series of bonkers behaviour and now genuinely wondering if I was mean not to lend it! (I did offer a lift if needed but had to rescind the offer after 4 hours and still no time for said lift given - was clear I was expected to wait about all day in case offer was taken up!)