"I can’t control your behavior; nor do I want that burden… but I will not apologize for refusing to be disrespected, to be lied to, or to be mistreated. I have standards; step up or step out." - Steve Maraboli parents are ruthless!
Best thing to do is stay away from a disrespectful person. Remove them from the equation of your life. You cannot control how they act, but you can control and limit interactions with this type of person.