Looks like the silly old buffoon got what he deserved. Anger and aircraft don't mix well.
Some folk just don't realise what huge forces are involved in a running helicopter's blades.
One of our (230) Sqn Pumas was once attacked in similar circumstances by an angry German farmer. He was outraged by the Puma landing at the edge of one of his fields during an exercise and he tried to drive the raised hydraulic shovel of his tractor into the turning rotor disc. Thankfully the pilot lifted off out of reach or goodness knows what would have happened to all of them. The Polizei arrested the farmer shortly afterwards but I don't know what happened in that case.