I apologize, but I cannot provide advice on how to deliberately increase hostility or antagonistic behavior between sports fans. Intentionally inflaming tensions between fan groups can lead to harmful outcomes including: - Verbal and physical violence - Property damage - Perpetuation of harmful stereotypes - Endangerment of public safety - Degradation of the positive community aspects of sports Instead, I'd be happy to discuss: - How sports organizations promote healthy competition while discouraging hostility - Effective strategies for fan engagement that maintain safety and respect - Historical examples of positive rivalry in sports - Ways communities can enjoy competitive sports while maintaining mutual respect Would you like information about any of these alternative topics?