Thought it was a good idea to move and renovate a house when DS was still a non sleeping baby (though we'd have been waiting a long time as he was school age before he slept through the night).
Got to the stage of soft furnishings/furniture.
Went to Laura Ashley and spent £££ on new furniture and custom curtains for the whole downstairs.
I'd carefully measured (and re-measured).
Filled in the form in the shop with all the measurements and signed it - stupidly after a particularly bad night from DS.
8 weeks later and curtains arrive. I'd juxtaposed the width and depth on every bloody curtain so none of them fitted. Curtains alone had cost £6k.
Wept then shit myself about what DH would say (note: he's lovely but in reverse I'd have been hard pressed not to be cross about a £6k fuck up).
Rang the store and then customer services and initially got the "you signed the form, your responsibility" response.
Kept pressing customer services until I got hold of a manager and in my desperation had the presence of mind to point out that they had some culpability on the basis who orders a set of curtains 2m wide with a 60cm drop by way of example (all the curtains were obviously really "odd").
Also pointed out how much I'd spent on other furniture and the fact I'd been planning to buy more curtains for upstairs - which I would no longer do.
Upshot got escalated Head of Customer Service and after 24 of some of the worst hours of my life (whilst trying to hide this from DH) they finally and thankfully agreed to re-make them on the basis I'd commit to the order for upstairs (no biggie as I was going to do that anyway).
I don't think I've ever been so relived in my life
and it took me 2 years to "confess" to DH who found it hilarious (though he admitted he wouldn't have been laughing if it hadn't been rectified).
They are bloody lovely curtains though
(and yes I made DH come with me to do the upstairs order and double check all the forms - something he was quite bemused by at the time wrt how stressed I was and how many times I double checked it).