This cotton glove, that was soiled with linseed oil and paint thinner, was thrown in the trash on a jobsite which ended up being a perfect opportunity for a fire to start.  When linseed oil oxidizes (dries), it creates heat when it is mixed with a solvent such as turpentine.

Unfortunately, this is a large source of fires on jobsites – one that can be prevented with proper care.  This can easily happen to a cotton rag on a jobsite.  Always stretch out your soiled rags or submerge them in water.  See also: Oil Glaze Recipe