God, in-laws. I think I posted a thread like this about six months ago.
Mine were in total denial about my husband's alcoholism and have taken exactly zero interest in his recovery process. Total, complete denial. Now my RAH's younger sister is exhibiting many of the same early alcoholic characteristics -- DUIs, unhappy with life, life revolves around booze, unable to maintain relationships thanks to boozing habits, incorrigible, grossly selfish -- and they just shake their heads and shrug their shoulders and act like we didn't all JUST go through this with their other child!
Denial is a powerful thing.