The pain of falling out with a close friend, and should you discipline other people’s children

Conflict with close friends can be a significant event in adult life. We take your calls on how you’ve navigated the ups and downs of these relationships. And in the Too Hard Basket, your brother and sister-in-law tell you that their kids don’t respond well to discipline, so do you step in when your young niece and nephew behave badly, or do you tell their parents to step it up?