A Flea's Fever

Izaya is trying to get over a sudden fever, and decided that he needed to wear himself out for a good nights sleep. So, he does his favorite activity. Pick a fight with Shizuo. Only Izaya gets more than he exected, and soon faces something very unpleasant. Suck at summaries, my apologizes for that. Rated m for safety. One shot for now, might become more later. RxR