You need to email everyone and tell them this is the last time anyone touches or disciplines your child or you will restrict access and report them . The sister is lucky she didn ' t get arrested for doing that . Tell them that if your child does anything inappropriate , whether accidentally or because he didn ' t know any better , they need to inform you and you will have a talk with your child , discipline him and pay for the damage . The only circumstance it ' s ok for extended family to discipline your child , is when they have brought up their concerns previously and neither you or the child has taken it seriously , yes then expect people to feel like wanting to discipline your child verbally but they should never ever physically .