weve had a few havent we people,my very first experience which was my very first game vs spurs 1977 i think season was we had just taken a 2-0 lead if i remeber and spurs fans started to throw stones at the charlton fans.
I rem also we played chelsea at the valley chelsea fans had set light to the east terrace. That was in the north stand, and they were actually setting light to rolled up paper.
on our return to the valley i sat lower tier at back 2 fans seat but one where i was sitting one through a larger can at this blokes face and massive fight broke out spilling on to at least 3-4 rows in front.
Also man utd game away end lot trouble i think if i recall man utd fans raped a steward on duty that day,weve also had an arsenal fan sitting in the upper north when we lost at home van persie goal i rem fans pointing him out and this fan came from no where and pulled him out of his seat and luzzed him down the steps