Spontaneous human combustion, or as scientists call it, "SHC", which is short for "Superfluous Horcrux Creation", is the act of deliberately setting oneself on fire. There have been vast studies conducted to determine why scientists call it this, but none of them have ever produced any conclusive results. There are those who would contest that SHC actually involves a deliberate act, though they are all Scientologists, so nobody believes them anyway.