My BF has a 21 year old daughter who returned to the family home,having left an abusive relationship.This man wasnt physically abusive as far as i am aware,and is a doting dad to their little boy.They share custody.The dad however wants full custody and has phoned my bf"s ex-wife to tell her he wont be bringing the little lad home because someone has been abusing him.This man has tried various underhand tactics to gain custody,but never refused to return him before.The abuse allegations are nonsense,and the worry is what he is planting in the childs head..If anyone has any advice,the family are distraught.