Sis-in-law stressing me out!!!?

Well, I have about had it with my sister-in-law (husband's sister). She called me last night bragging about how they are looking to build a house because they got approved for a FHA loan. Now she is on disability for her bad knee. which, she actually hurt at HOME but then pretended to fall at work. She actually gets more money in disabiltity than if she worked at her crappy little minimum wage job where she didnt even work 40 hrs a week. she quit any good job she had. well, she's bragging about how they got approved for this big loan with NO money down. This is someone who can't even pay their cell phone bill half the time and it gets turned off, as well as she has to put her house phone in someone else's name cause she can't pay hers and it gets turned off. She claims all 3 of her kids have learning disabilities and she is always running to the school to get the school to give them easy tests & then brags about how well they are doing. she lets her 14 yr old date an 18 yr old!! help!