There is a Brit who wrote a book on humor. This was voted as the world's funniest joke... by a bunch a Brits, I think that says a lot.
A dog walks into a telegrapgh office and says I'd like to send a telegraph to my mom and dad. OK says the the man behind the counter and he slides a pencil and paper across the counter. The do writes woof, woof, woof, woof, woof. The man looks at the paper and says, you know for the same money you can add another woof. The dog looks back at the man and says don't be silly... that wouldn't make any sense.
A dog walks into a telegrapgh office and says I'd like to send a telegraph to my mom and dad. OK says the the man behind the counter and he slides a pencil and paper across the counter. The do writes woof, woof, woof, woof, woof. The man looks at the paper and says, you know for the same money you can add another woof. The dog looks back at the man and says don't be silly... that wouldn't make any sense.