I don't think my nephew thinks of my house as going to someone else's house, we are pretty close he is here pretty often I have just decided to try not to invite them altogether here but I have no doubt my bil will be rude with my grandkids when they are at that age too but my daughter will probably have something to say about it. I do think my sil misses some teaching opportunities that my daughter may not, my daughter is upset because they give my nephew pepsi in his sippy cup so there is a bit of excessive leniancy on their part.