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.
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