The arrogance thing can be excused partly. They need to air authority once in a while just to take control even when it's unfounded. We do that on some situations and it's unconscious at times.
When I have kids of my own. I already foresee me saying "cause I said so, or I know so" when difficult questions come.
Baozi. That's my trivia for the day. I think I vaguely remember hearing the word somewhere but never stuck what it meant. Now I know.