When the potential buyers looked at the house, they expressed concerns about hairline cracks in the exterior stucco but were assured by the sellers that the cracks were minor and could easily be repaired. (realtormag.realtor.org)
Fast forward four months - our furniture is upstairs - and a couple weeks ago we noticed that two of the bedroom doors upstairs no longer lock / shut properly (it has moved)- we also noticed a crack down the wall upstairs and a small hairline crack on the ceiling downstairs by the steps. (todayshomeowner.com)
Yesterday I did a UV dye test to locate my leak and it appears that in my case coolant reservoir has one of these small hairline cracks as well. (mechanics.stackexchange.com)