Sludge it's all to easy to get pissed or just play up at events then blame the police or stewards when it goes wrong.
If fans had abided by the rules at Hillsborough and Wembley there is a good chance both would not have happened.
I remember seeing fans breaking into Edgar Street and Brenford with lots of others without tickets if something had happened it was the fans who were to blame but no doubt people would say the gates should have had a stronger lock or more police/stewards behind them..
If people behaved then most bad outcomes won't happen.