In Cynthia Lord‘s novel Rules, Catherine was under a lot of pressure to be responsible for David. Through Catherine’s experience, the reader understand what it is like to live with sibling with a disability. David did things made Catherine embarrassed. As seen on page seven He would scream when he didn’t get what he wanted. He didn’t have social manners around people. David was Catherine’s responsibility. Catherine had to watch David and make sure he did not do something do something wrong. She also had to make sure that David knew exactly what was going to happen next. Catherine had to make sure David did not get in trouble. David was often got bullied and Catherine had to stand up for him. Catherine had to protect David on page one hundred and six.It’s very difficult to have a sibling with autism because you have to take care of them and protect them even when if they embarrass you.