Sounds like they have a penchant for assault, as opposed to the more choreographed arrangements favoured by those who like that sort of thing. Likwise, Cardiff jumping on what they call scarfers (those who like that sort of thing don't wear club shirts and scarfs), as they did when we played...
I had a near silimar experience. No swing, but very unpleasant. I'm sure most of them are decent, but its the little things that matter. The 1970s was a long time ago.