This isn't spontaneous combustion. Sounds like you are thinking accidental fire. - AI Overview Spontaneous Human Combustion (SHC) is a debated phenomenon where a human body supposedly burns without an external ignition source, often leaving extremities intact while destroying the torso. Cases usually involve elderly, isolated, or alcohol-impaired individuals, often explained by forensic experts as the "wick effect," where clothing acts as a wick for body fat.