Possible Clues:

• Tribal conflict involving northern part of UK
• Snobby Channel Islander upset losing learned supply
• Like an exclusive group in confrontation outside pub after upset
• Discriminative local upset during disagreement
• Sticking to one group
• Tightly familial
• Tribal conflict involving local revolutionary
• Tending to exclude those outside the group
• Excluding others outside one's own group
• Excluding non-group members