A thug was filmed as he smashed up a police car by hurling bricks at it and jumping on the roof.
Wearing a motorbike helmet to conceal his identity, the vandal first threw missiles at the car windows.
One front window shattered but another throw completely missed its target even though the assailant was standing only feet away.
He then climbed on the bonnet and repeatedly kicked the windscreen before climbing onto the roof, the Birmingham Mail reports.
The thug kicks and tries to rip off the sirens from the roof but fails due his lack of strength.