Careful handling of the wood is needed to avoid dents, scratches and soiling with dirt. The parts are usually covered by unwanted substances, the contaminations or soiling. Self-cleaning ovens reduce food soiling to ash with exposure to temperature around . Siltation also contributes to the degradation of their habitats by soiling the water. This is a feature of people with soiling secondary to obstructed defecation. The preferred method is by burning, to avoid soiling the pages. President Harris tries to hulk out but ends up soiling his pants. However, they were prevented from soiling the sculpture directly by its Perspex case. The spies set about agitating trouble and soiling the reputation of the Druze. The term comes from the French for soiling, "salir".