You missed an option! The 'lend your car to your uncle who has it for two weeks while his is getting repaired then returns your car telling you that the battery is dead and how frustrating it was having to jump start it for the last week to get it going'
To be fair, unless he left the lights on or did something else which contributed to the battery dying, it's just a maintenance thing, which is your responsibility, not his.
That said, if it was me who'd borrowed the car, I probably would have replaced the battery at my cost as a thankyou for the loan.
You story reminds me of something which happened between a couple of people I know a few years ago. Person A lent a petrol brushcutter to person B. Said brushcutter was fairly old, and had done plenty of work. It totally crapped itself in the engine department about 5 minutes after B started it. A expected B to pay for repairs or a new brushcutter. Totally unreasonable. The thing died of old age, and would have done so the next time A tried to use it if B hadn't borrowed it.
My point is, people need to be reasonable about these sorts of things, and the fact that something fails during the time you've lent it to someone, doesn't shift the responsibility of maintaining your stuff to someone else.