omg my boyfriends sister is never home and she has a 4 year old boy who she just leaves with her…

omg my boyfriends sister is never home and she has a 4 year old boy who she just leaves with her parents whom we live with as well as her anyways this kid has no manors and no disapline and does whatever the hell he wants and my boyfriends parents treat him the way she wants them to treat him while she is out partying and drinking all the time and she doesn't even ask if they will babysit ugh y is it so hard to tell your children no we won't do this stay home and take care of your kid or get out her and her son act like they own everything I can't stand it