BBC report on National Union of Teachers research suggesting that spoiling primary school children at home can in some cases lead to them being disruptive at school.

Link to the the news article here: Spolit children can disrupt schools 

I guess most of us have given way to our kids' demands at some point rather than standing our ground as it was the easier thing to at the time...only to find later on that it reinforces that behaviour since they got their way...