My great grandmother did this (aside from the cliff thing). She had hurt her hip and could have recovered with physical therapy....we even payed for someone to come to the house and do PT at home....but she was too lazy. So we wheeled her around, bathed her, made all of her meals, and permanently altered our own lives to cater to her not wanting to put in any effort. I love her, she was my grandmother....but is it a coincidence that she was also fat?  On the other hand my great grandfather only has one leg and took care of her til the day she died. Is it a coincidence that he's a super fit ex-marine? I think not. Mans 90 years old and still kicks ass. I'm sure if he broke his hip tomorrow he still wouldn't give up. I'm pretty sure my mom is going to wind up taking care of her husband eventually though. If he's only 40 and has these types of problems, can you imagine him at 60? 70?