Is this a good joke?!

Is this a good joke?

A Polar Bear walks into a bar and says to the barman "I'll have .......... er ........... um .......... hmmmm ........... um .......... a pint of lager please"
The Barman say "Why the big pause?"
With a puzzled look on his face, the Polar Bear looks as his paws and says "I can't help it, I'm a Polar Bear!"

Pretty good one.


EDIT: Here, allow me to explain it for those of you who dont understand...

A polar bear is the largest bear on the planet. Its paws are huge, sometimes spanning 12 to 16 inches.

The joke is that the polar bear paused when he asked for a drink. When the bartender asked "Why the big pause?", the polar bear took it as, "Why the big paws?"

So, the polar bear simply told him he had big paws because he was a polar bear.

Now seriously, if you had to have this explained to you...you need to get out more often. lol