So this is actually about my DH and DBiL.
My DBiL works for my DFiL. My DFiL is closing is office and DBiL is selling loads of their stuff on eBay. My DH has stored a large item of ours in their office and it needed to be sold. DH asked DBiL for help to sell it on eBay. My DH wrote the advert and my DBil listed it on eBay. The butter dropped out and the next in line got it. My DBiL stabbed collection for a Sunday (despite working in the week) and arranged for us to be there to do the handover with him (as he needs to unlock).
My DH told him to keep part of the money. (About 15%). My DBiL is arguing and saying he wants 25%. My DH is livid saying it was a favour and expected to pay 'beer money' and that he's talking the piss. I can see this becoming a huge family feud and can see both sides.
Who is unreasonable other than both for both sorting out first!