Better than that we, actually do have pipework from the flats above that runs through a cupboard in our kitchen, with various stopcock/switching combinations that let us turn our water off (standard), all the water off for all the flats (useful), or… turn the water off for everyone except us (
… but also useful if someone above has a leak, but we don’t want to sacrifice our own supply).
Other quirky stuff related to our place:
- We have two addresses - cos we’re in the ground floor, on the corner, in a tent block - our flat has a main door opening onto one street and the other seven flats share a common entrance and hall (which our ‘back door’ opens into) which opens onto the other street. Council tax, the electoral roll, and the electric meter are registered to the shared entrance address, everything else is registered to our front door address.
- We have a shower room and a bathroom and if you have the doors open, two people can see each other and chat whilst defecating. Or, they could have a poo race (haven’t done this …yet).

(It’s a shame @anon29812515 isn’t around, I think he’d enjoy that second nugget.)