Funny alsatian dog telegram joke
A dog walked into a telegraph office and said, "Woof, woof... woof, woof, woof ... woof, woof, woof, woof!"
The telegraph operator looked at the dog. "Do you know", said he, "If you add another 'woof'" then the cost of the telegram will be cheaper.
The dog looked at the telegraph operator and answered, "But that wouldn't make sense now, would it?"