Well, the joke's on him.

An 18-year-old man, who said he was joking when he allegedly entered a suburban Dallas police station demanding money and later saying he had a gun, has been jailed and charged with robbery and theft.

Keithan Kennard Manuel is in Dallas County jail with bonds totaling $300,000 after the incident at the Wilmer Police Department, 15 miles south of Dallas. Carl Hays, Manuel's attorney, didn't return messages from The Associated Press seeking comment on Tuesday.

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Police records show Manuel walked into the police station Saturday with a white towel over his hands, and told the dispatcher to hand over the stationhouse's money. The records show Manuel changed his request to asking if there were any warrants against him, but, as the dispatcher checked, Manuel then said he had a gun. Two officers arrested him.

In a jailhouse phone interview, Manuel told CBSDFW.com that he “didn’t say nothing like that.”

"Man, I play like that all the time," he told the station, pointing out that a gun was not found. "I didn't think she would take it seriously."

Police Chief Victor Kemp told the station, "This young man wasn’t using his head for sure. You hear of those World's Dumbest Criminals every once in a while, but you never think it's gonna happen in your city."

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