They have rubber teeth. Pauline repeated this information in a geography lesson and found herself the laughing stock of the class. That was how she learned that a man, even if he is your own father, would rather make up an answer than admit to his ignorance. For him answering is a game, and not knowing what he's talking about just adds to the thrill. Expressing skepticism can be highly inflammatory.
Many women actively encourage male answering behavior.
Women who behind closed doors expound eloquently on particle physics may be found, in male company, gaping at the news that the earth is round. Growing awareness of MAS has led some to call for a moratorium on all male-female conversation. This is alarmist. But care should be taken. Women must remind themselves that if a man tells them something particularly interesting there is a good chance that it is particularly untrue.