Sister went on vacation and left rude teen with us. I don't want her to stay with my family! Help?

if your sister or her sister went on vacation its a little hard to do anything about it now that the sister is gone unless there is another relative that will take her make her understand that the rules she has to abide by and her mouth gets the best of her then somebody has to tell her that they won't tolerate her mouth i would have done all this before the sister went on vacation let your mom know about how you feel did your mom okay this knowing she is rude someone better sit her down