@lmur,
Reasonably high. When they won the League 1 we came second and spoiled the party by beating them on the day they were presented with the trophy.
Brighton have a bad re for violence, I remember there being a big problem when they were in League 2.
Southampton supporters are normally quite placid and easy going, it’s the others who cause trouble.
The last time we played Portsmouth, one of their supporters, an ex ppc for UKIP, punched a police horse in the head.