Judge Mathis Pulls a Gun on City Employees?

Four years ago Judge Greg Mathis was accused of spitting on a Detroit valet after waiting 10 to 15 minutes for his car [click here if you missed that]. 

Now Judge Mathis is accused of pulling a gun on LA city workers...

From TMZ

Law enforcement sources tell us an employee from the L.A. Dept. of Water and Power made a report Tuesday accusing Mathis of threatening workers with a gun after a heated confrontation. According to the employee, Mathis got pissed after they asked him to move his vehicle -- words were exchanged -- and things escalated to the point of Mathis allegedly flashing and pointing his gun at the workers.

However, we spoke to Mathis, who has a much different story. Mathis tells us the employees were actually blocking his vehicle in, and he was unable to pull out of his driveway.

Mathis says one of the employees got smart with him when he stood in the street, saying if he didn't move, he'd get run over by their work truck. Mathis took that as a threat, and tells us he informed he had a weapon -- though he says he NEVER showed the gun, let alone pointed it at anyone.

Eventually, both sides cooled off ... and the LADWP employees continued on with their work further down the street.

Clearly, the employees were upset by the interaction, as they took the allegations to cops. We're told the LAPD took a brandishing report, and the case is officially under investigation.