—u/Bitter-Conflict-4089 “Usually, I’m against people touching others’ property, but in this case, well done. Be aware that next time she will be hiding her wallet, but maybe just refuse to go out to dinner if she didn’t bring her wallet/card. Let her know if she doesn’t pay she will not be going out with you and your husband, and make it clear that your hospitality is a courtesy, not an obligation. She’s very welcome to stay in a hotel next time if she doesn’t abide by the rules and respects you. Your husband’s family might start harassing you after you establish the rules, so it might be worth having a dialogue with your husband and having him be ’the bad cop.’ If the family complains, tell them that they are welcome to pay your SIL’s expenses, including past dinners if you have the receipts or bank statements. Your SIL’s an entitled brat.” —u/Iataaddicted25 “I am an absolute control freak about people touching my stuff, but…you’re not the asshole. As others have pointed out here, if she’s really hard up financially, there’s always IHOP for meals out.” —u/Based_Orthodox —u/jizzy_lizzie “Also, she stays at your house for free. If I travel and stay with someone, I ALWAYS show my appreciation by treating them to a nice meal; it’s the least I can do.” —u/FeelingAnt465 —u/TemptingPenguin369 “Why do you and your husband still allow her to stay with you or choose expensive restaurants or even go out with her? I think you need to talk to your husband about this behavior. I am very curious as to why he hasn’t stepped in and shut this down and wonder if he is the one encouraging her to do this behind your back.” —u/SamGamgE “You’re not an asshole, but you really have a husband problem. He needs to lay down the law to his sister. She is the guest. If she is picking the restaurant, she is paying for her meal. From now on, there will be a wallet check before she leaves the house.” —u/NerdySwampWitch40 —u/Bitter-Conflict-4089 “This is a permanent solution to any meals out with her: Don’t invite her again; don’t accept her reservations.” u/Kephri1337