Open street warfare has broken out between North African Muslims and Roma in Lyon. The quarrel startled with the Muslims claiming they had been burgled by the Roma. Carfuls of Muslims turned up and threw stones at a Roma squat. They promised to come back next night and burn it down but, when they did, the Roma had gathered reinforcements. About 30 Roma toughs were waiting for them, armed with iron bars. The Muslims fell back and stood throwing stones and Molotov cocktails at a distance. A car was set on fire. The Muslims are still coming by the squat periodically to harass the Roma.
When two parasites fight, what happens to the host?