So long story. My SiL m35 walked out on my daughter F35, leaving her with two special needs kids (both have autism, one fairly severe). He’s always been a lazy pos, he left her once before a few years ago after she had a double mastectomy, she took him back hoping to work it out. She went to beauty school and a week after she graduated he walked out again. I never cared for him, he’s lazy, never did work around the house or anything. So right before thanksgiving he walks out for some girl he met playing Roblox, he moved in with his parents. When she tried to contact him he told her to leave him alone. So she filed for divorce, he immediately started harassing her so she got a restraining order which he promptly broke and was arrested lol ( he’s not smart). So the first court date for the divorce judge orders him to continue to pay all the bills like he was, he immediately quit his job, like that same day. So here’s my thing, his parents have been giving him the money to pay the bills, but he’s not paying them, in the last month he’s spent over $600 at the dispensary and almost $2000 on Roblox, yes $2000. My daughter’s lawyer has filed motions to get him to pay. Here’s the thing, his parents don’t know he’s blowing all the money trying to buy some girls live on Roblox, (she’s married too but that’s a whole nother story). So I’ve always had a decent relationship with his dad, so my question is should I tell the dad what he’s doing. It’s pissing me off that my daughter is working her ass off, taking care of two kids, trying to maintain the house all while he sits in his parents basement getting high not working and blowing all the bill money on Roblox. He has no desire to see his kids. Meanwhile I’m not in great health and spend a lot of my time watching the kids, which I don’t mind as they’re my grandkids but it is a struggle. So should I tell the dad or just mind my business.