Why don't the Arabs have sex education and driving lessons on the same day?
  Because the camels get too tired.

Why wasn't Jesus Christ born in Australia?
  Because God couldn't find three wise men and a virgin.

Why don't the Irish have ice in their drinks?
  Because the woman who knew the recipe died.

How do you tell the difference between a dead kangaroo and
    a dead Aboriginal on the side of a road?
  There's skid marks in front of the kangaroo.

How do you kill a blind person?
  Stand at an intersection and go whoop do-do-do-do-do

Why did the koala fall out of the tree?
  Because it was dead.
  Why did the second koala fall out of the tree?
  Because it was hit by a falling koala.
  Why did the third koala fall out of the tree?
  Because it thought it was a race to the bottom.

What do they do with Jews who have attention deficit disorder?
  Send them to concentration camps.