In my experience it happens at just about every game. Can’t really speak for at St James’ as I’m at the opposite side of the ground but on away games I’ve been to this has happened at just about every game.
Back in the day, 100s of Chelsea fans would have ploughed through that pathetic excuse of a fence and chinned the Soton fans.
Back in the day 100’s of Chelsea fans would have been hiding amongst the Southampton fans and not needing to get past the pathetic excuse of a fence in the first place.