Mys Terry wrote:

Spontaneous combustion seems like magic, but it really isn't. I once negelected
to empty a partially full bag of clippings on my lawnmower. Later that evening I
went into the garage to get something and smelled that smell. The grass in the
bag was smoldering and HOT with wisps of smoke and steam rising from it. You
don't really think of damp grass as even being all that flammable if you tried
to light it with a match.


Terry & Skipper, Clearlake Texas

Didn't farmers lose their barns from hay smouldering in the loft?
i believe lots of ventilation was required.