Dog walks into a post office, says he wants to send a telegram.
"OK" says the clerk, "what's the message?"
The dog says, "Woof woof woof, woof woof woof woof woof, woof woof."
Clerk says, "OK, but for the same price, you can add one more 'woof'".
The dog frowns and replies, "But then it wouldn't make any sense."