After the offending guy settled, one bloke from the back, came up and abused the security guard and began kicking the train windows and breaking them with his feet, as in shattering them. Then others got involved. he became furous at the guard.
The cops just called me back and I stated everything that they wanted.
Basically, no-one did anything to prevent it continuing. The guard was about 6 feet away. He had no back up.
