mini had an incident several years ago where he was near a fracas that developed in a pub, heavies came wading in and in their ignorance they decided I was the cause. Rather than escort me from the premises, one of them decided to lay into me, I defended myself which eventually led to a charge of battery, in my case the CCTV footage got me off, if there was no CCTV I was looking at a three year stretch and a civil case which could have cost me huge.
Lesson: make CCTV compulsory for all these places.