cutting rear car seats

im having a harness issue. a bolt wont hold down anything on the passenger side so i cant really keep the harnesses on. on the side of that although i tell people that i have no back seats they just get in anyway so im like wtf. thought of an idea to cut the rear seat in half so i can have 1 rear passenger on the pass. side. and still have the other half of my car stripped so MY harness can be hooked up still. possible? if anything buy one of those clutter catchers from walmart to act as an armrest in the rear.