They took him about a mile offshore and one of the marines said:
"how do we know how deep it is"
Another marine replies:
"I will jump in and check"
He jumped in and it was only up to his waste
"not deep enough here!" he said.
So they went out another mile from the shore.
The marine jumps over board and the water only comes up to his chin
"Still not deep enough!" he said, "let's try one more mile"
They take the boat out another mile, and the marine jumps over the edge and just disappeared!
After about 10 minutes he pops back out the water and says:
"Perfect! much deeper here, now pass me the shovel"
