They'll have to face how they acted someday...

When I hear my kids bickering and fighting in the back seat I have to wonder how they would feel if they realized that they will all have to interact together once they've grown up -- calling each other for help and even introducing their children to each other as friends. I think they are of the mindset they only have to put up with each other till they hit 18. They are (hopefully) in for a surprise.