A plane crashed in the middle of the ocean and only two men and a woman survived. They managed to get to an island on a dingy.

To relieve the sexual tension, they had a threesome every night.

But the woman felt ashamed of what she was doing, so she killed herself.

A week later, the men felt ashamed of what they were doing...so they buried her! Obviously, those men weren't IRS employees or they would have felt no shame.