Friendship Between Women:
A woman didn't come home one night. The next day 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 about it.
Friendship Between Men:
A man didn't come home one night. The next day he told his wife that he
had slept over at a friend's house. The woman called her husband's 10
best friends. Eight of them confirmed that he had slept over, and two
claimed that he was still there.