Two sharks were swimming in the ocean when they spotted survivors from a sinking ship.
"Follow me, son," said the father shark, and together they swam toward the group of people.
"First, we circle them a few times with just the tip of our fins showing."
The son circles the group of people.
"Well done, son! Now let's circle them again, this time with all of our fins showing."
The son circles the group of people, this time with all of his fins showing.
"Now," the father said, "we eat everyone."
And they did.
After they were both stuffed, the young shark asked,
"Dad, why didn't we just eat them right away? Why all the circling first?"
The father replied wisely,
"Because, my son, they taste much better if you scare the crap out of them first."