Dd's best friend has a close relationship with her own dad and they often play fight .Dd's friend is 18. However tonight DD's friend has asked DD whether her dad My (DH) has ever accidentally grabbed DD's buttock in a play fight ?! Apparently this is what the friends dad has done tonight. The dad had apologised profusely as DD's friend felt incredibly uncomfortable and embarrassed though she now feels she might be overreacting. Not sure how to help DD advise.