Shawn Harrington: Swimming with sharks in a bird cage (VIDEO)

A stunt by an Australian adrenaline junkie is now calling it the biggest mistake of his life.

Shawn Harrington, 27, said he thought it would be a good idea to swim with sharks, but he didn't use a standard shark cage. Instead he decided to use a $50 bird cage.

After a couple minutes in the water, he realized it wasn't such a good idea when a tiger shark came a little too close.

He managed to escape without getting hurt.

Harrington is part of an entertainment group similar to the "Jackass" crew here in the U.S.

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