I agree. Especially, sons should learn something from

thier "rude" fathers. That's the way the world works. In nature, men are rude however they are well-educated because men need to fight for his family. And also, it's not a shame that men say sorry when we made mistakes. Thanks to my my wife and my daughter, they teach me to say sorry. That's so hard for me at first. Now, I can say sorry from my heart.