Scenario: Sibling A lent Sibling B a car seat (a good one) to help them out when they had a baby, as money was tight. It was made clear that they would need it back when they had another child.
Sibling A had another child and asked for car seat back, giving several months' notice (obviously). Sibling B had been using seat for 18 months by this point. Covid hit, car seat couldn't be returned in person so needed to be couriered.
It took Sibling B another six months to get round to sending the seat, citing not having found a replacement seat / big enough box to send in / too expensive to send / too busy. Finally got round to sending it (had had it two years). In the meantime, Sibling A has been using car seat that is about to expire (apparently they have a shelf life, after which time the plastic degrades) and will soon be outgrown.
Car seat arrived filthy, with part of the harness worn away due to incorrect usage (twisted belt causing friction in the wrong place so badly fraying), and inadequately packed. Has clearly been chucked around by couriers - standard, and should have been packed better as this is to be expected. Had no padding round it and had obviously been rattling round in the box. Dirt and potentially harness could have been resolved (if harnesses available as a spare part), seat being thrown around cannot as there's no telling what unseen damage has been done (which is why they advise to replace seat if it's been in even a minor accident).
Sibling B is refusing to contribute at all to cost of new seat, citing money issues and that it's not their responsibility at all, and they've already spent money sending it back. Sibling A also has money issues and can't really afford to replace a seat that they were counting on using and would have been able to had it been packed properly (or if they'd not lent it in the first place - lesson learned there).
I mean, it's obvious which sibling I am, but who is right? Who should have paid for sending it back, and should sibling B offer to contribute to a new seat? Wear and tear and dirt fair enough, seat unusable I think not so much.