Yeah fuck that shit. My wife's parents are the poster children for loving and honoring your parents without ruining your life getting dragged down by their stupid decisions. In addition to sticking my wife with $80k in high-interest rate college loans because they decided to open a business with her college fund the year before she left for college (the business was closed within 6 months because they're morons and have no idea how to run a business), when it comes to money, they make the stupidest possible decision in any given situation.
Perfect example: they wanted to retire at 55 and travel the country in an RV. So, at 55, despite their only assets being a dilapidated house that they took poor care of (should've been worth $450-500k in the area they lived but they could only get $300k for it because it needed well over $100k in repairs to be livable) and a measly 401k, they sold their home and bought a 10-year-old, used RV for $120k which they then proceeded to take about as good care of as they did their home. Needless to say, they've had to spend over $150,000 dollars over the last three or four years replacing damn near every part on their "home" because they were too cheap and stupid to spend the money up front on a new/new-ish rig and too stupid and cheap to do all of the necessary routine maintenance on a mobile home. Now they've blown through most of what little they had in savings and have had to go back to working jobs they hate when my wife told them NUMEROUS times to not buy a used rig, not think they can retire on what little money they had, fix things when they were making noise (before they catastrophically blew out and cost them 10 times as much as it would've otherwise) and that they couldn't treat their new home like they did their old home.
Bottom line is that we agreed several years ago that when her parents inevitably blow their retirement savings (and they're well on their way at age 60), we're not giving them money and they're not allowed to stay with us. If they're unwilling to take my wife's advice and want to leave their financial future in the hands of god (a common refrain when my wife offers them sound, reasonable advice), god can handle their inevitable homelessness and poverty. We're not going to be punished because they don't understand the most basic principles of finance and are too pig-headed to take advice and offers of assistance from people who want to help them. We're doing well enough in our lives that we can live comfortably and afford nice things but we're not well enough off that we can support their stupid asses and we're sure as shit not ruining our marriage letting them live with us.