Tad weird but reckon my DH thinks I was a bit of stickler for this...
At the moment we've been having a massive clear out of stuff and my DH put a few things on FB marketplace. It wasn't much but the bits we thought would be a shame to chuck out completely. One of them was a bookshelf which we bought new a couple of years ago (think it was about £90ish) but now we've moved it's just the wrong shape for DH's office unfortunately.
So DH put it on sale for £24, not sure why he came to that amount (did point out it was a bit of a random figure but hey ho). Someone messaged him and said that yes they wanted it and asked when they could pick it up. DH said fine, gave them the address. Anyway, they turned up late so I was at home and DH wasn't, but I knew how much he'd agreed on. Turns out buyer had turned up at the house over an hour later than he said he would and without the right amount of cash. He sort of shrugged at me and went "oh sorry, I've only got £10 notes, so..." and trailed off expectantly 
It was quite clear what he was hoping would happen, that I would say no worries and let him have it for £20. But I just felt so annoyed by it because it seemed so blatant. Maybe I'm just being a grumpy pregnant lady. So instead of saying fine, I smiled and said "oh no worries, there's a corner shop at the bottom of the street, will only take you 1 minute to get the right change!". He blinked at me and stammered a bit, then said okay and walked off. Funnily enough, he didn't come back...
DH has been finding flaky people on FB marketplace etc really irritating, so when I told him what happened, he seemed a bit exasperated that we still had this stupid bookshelf he just wants rid of! He wasn't angry, just you can tell he'd prefer it if I'd just said fine to the £20...
I personally think that buyer was a complete CF and knew exactly what he was trying to do. If he'd wanted to negotiate price, he could have said explicitly, or said so when he was chatting to my husband and agreeing to come and fetch it. AIBU for thinking that?
On another note, does anyone want a bookshelf?!
