Answer me this: Does a straw have one or two holes? Have fun loosing brain cells! Lucky you guys have brain cells to lose.

A straw only has one hole because the hole is carried out throughout the whole object, making it one.

Generally spontaneous human combustion is something that still bewilders some, human combustion happens very rarely and doesn't affect the surrounding areas, so unless you want to set your self on fire, human combustion will remain spontaneous and very rare.