WH I agree with you 100% This is NOT OK and I would document it.
Not sure how old your son is, and what the laws are where you live, but I think it is OK for your son to refuse to look after these people who are no relationship to him.
Could he go for a walk for example?
Also at what point will he be old enough to refuse to go to spend time with his father? Although a relationship with the parent is important, so are the emotional needs of our children
