This is such a tricky one, essentially one of my nephew's is a really unpleasant little kid (and an awful thing to say about any child but especially one you are related to) - he has never really been given any boundaries. Myself and my DH have never intervened but it's now got to a really uncomfortable level especially around our children. Nephew dominates all games between the kids, takes toys and possessions/things out of other kids hands constantly, won't take turns, insults our kids, throws massive tantrums if he doesn't win every game, I don't think he even knows the words please or thank you and his parents do absolutely nothing.
I appreciate there is always a bit of this between kids but our eldest is now saying they don't want to play with their cousin and I don't really blame them. My heart aches for them every time something is snatched out of their hands again.
What would you do? We have tried practicing things our eldest could say along the lines of "I don't like it when you snatch toys, please could I have that back". Does anyone have any ideas as to how to handle this - I don't really want to cause a family feud but it's really not great. Is the best thing to do to try to help our eldest out as best we can with strategies for seeing her not so desirable cousin and accept it just something that happens for the short term that we see them?