Friendship between 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 between 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 of which confirmed that he had slept over, and two said that
he was still there.