Sadly the same thing happened to me at the Winnipeg Folk Fest last year,
although the culprit was not beans but those tiny corn cobs in a can.

A can got knocked into the fire and abandoned, and at 5 am exploded so loud
that park police came.  It sent hot little black missiles zooming through
the air for up to 30 feet away.  4 tents fell victim to the onslaught,
including one brand new tent from Mountain Equipment Coop (Gothic Arch or
some medieval thing).  Punctured full of holes from those hot little sons of
b*tches.

Lesson:  Folk Fest is no place to show off your new tent.

Jeff

> G.,
> I hope you punctured that can of beans. Reason I say so is because it
reminded
> me of an incident a few years back.
> We were camping and indulging in some drinking. Anyways, my buddy was
getting
> hungry and threw a can of beans in the fire, just as we were going into
the
> camper to make some drinks. He followed us in and forgot about the beans.
> Needless to say, about 10 minutes later we heard what sounded like a
shotgun go
> off, causing us to just about s**t our pants. We cautiously looked outside
the
> camper for a hunter or something and found that the camper, the trees, the
car,
> had all  been covered with beans.  And not a small can of beans. We're
talking a
> big gallon can of beans. It took us about a half-day to clean all of those
beans
> off the camper and car.
>
> Still laughing at it,
> Dion