Sistard sĭs'tärd' - noun - female offspring having both parents in common with another offspring; also a female sibling; that is also slow, dimwitted, and/or appears mentally challenged with the severe level of intelligence deficiency, yet is allegedly cognitively normal according to the standards set by society.
When you fail at something in life (eg. failing an exam or not getting a job), go home and spend an hour just standing in the shower, propping yourself up against the wall with your eyes on your feet.
Caleb knew the only thing to do after he didnt get prefect was take a failure shower.