Friendship among Women:
A woman didn't come home one night. The next morning she told her
husband that she had slept over at a friend's house. The man called his
wife's 10 best friends. None of them knew anything about it.
Friendship among Men:
A man didn't come home one night. The next morning he told his wife
that he had slept over at a friend's house. The woman called her husband's
10 best friends. Eight confirmed that he had slept over, and two said he
was still there.
