Friendship among women: A woman doesn't come home at night. The next day she tells her husband she slept over at a friends' house. The man calls his wife's 10 best friends. None of them know about it. Friendship among men: A man doesn't come home at night. The next day he tells his wife he slept over at a friends' house. The woman calls her husbands' 10 best friends. 8 of them say he did sleep over and 2 claim he's still there