A concertgoer calling himself Forrest V. Frankenstein Jr. gave Ohio police a monstrous time Saturday night, authorities said.

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Hamilton County Sheriff's deputies told the Cincinnati Enquirer that Frankenstein, attending Toby Keith's concert at Riverbend, approached them drunk and threatened repeatedly to kill them, declaring, "If I had a knife I would stab you."

Deputies took him into custody and put him in a cruiser. Frankenstein then kicked out a rear side window of the vehicle, court documents said.

Deputies moved Frankenstein to another vehicle where, police reported, he banged his face into the partition again and again, hurting himself, the Enquirer reported.

Taken to a hospital, Frankenstein continued to threaten deputies and then medical staff, deputies said.

Frankenstein is to be arraigned Monday in Hamilton County Court on charges of vandalism, menacing and disorderly conduct while intoxicated.