The Usenet Oracle has pondered your question deeply.
Your question was:
> Why do the Spanish put punctuation before and after a sentence?
And in response, thus spake the Oracle:
} .It seems more natural to me that way. .That way, you can tell what the
} tone of a sentence is going to be before you start reading it. .In
} fact, they don't go far enough. !They ought to put all of the words of
} the sentence in front, so that you can tell what the whole sentence is
} going to say when you read it!
W H Y C O P S H A T E Y O U <<<<&l <
-if you have to ask get out of the way-
Have you ever been stopped by a traffic cop and, while he was
writing a ticket or giving you a warning, you got the feeling that
he would just love to yank you out of the car, right through the
window, and smash your face into the front fender?...