Friends trick each other all the time, but convincing someone they've spent the last decade in a coma is no easy task.
Dennis' friends say he has a long history of driving under the influence. When he passed out in his truck one day after drinking, his friends turned an office into a hospital room and carried him inside.
When he woke up fake nurses and doctors told him he'd been in a crash and in a coma for 10 years. He realized it was a prank when his friend came in dressed in scrubs.
They say Dennis thought it was funny, but also made him realize the severity of his drinking problem. He agreed to get professional help.