I'll start by saying we have nice neighbours (an elderly lady and her adult son)
Their mains stopcock is is by our back door and about 2m of pipe runs under our patio and into their property. This pipe sprung a leak, and the bill has come in at £300. So my first question is technically/legally who should pay? Us because it happened on our property or them because it's their pipe?
They mentioned in passing contributing to the cost of the repair, but here is my AIBU. The fence between our gardens was damaged in the recent storms and they replaced the whole thing (we would never have been able to afford it anyway) they never asked for money and I never offered any. I just assumed it was their fence and thanked my lucky stars they were willing to just get it done. So I feel a bit off asking for money for this pipe repair. Is that totally ridiculous as it was their fence to do as they wish? If not how do I take them up on their offer to contribute? We could really do without a £300 bill at the moment!!
YANBU: just suck it up and pay.
YABU: they should contribute, don't feel bad about it.
For the avoidance of doubt, I'm not trying to be a CF and will absolutely pay if it's our responsibility. But the plumber implied it should be them fixing it which just got me thinking.