Chrissie shirks the additional work given to her this shows she lacks the trait of being responsible. The responsibility is the state of being responsible, accountable, and answerable for something within one's control, power and management. The responsible person will not neglect the task asign to him or her. The responsibility is a duty or obligation to perform the task satisfactorily.
<span>It could advise him to pass a knee radiograph to see if she has arthritis or other problems (rheumatism, ...) and <span>see the doctor</span></span>