So Dan Houg writes:

"...one can keep several
cans of Spam under the seat in their van for emergency rations or
wheel chocks.  Spam can also be burned as an alternative heat source
due to its, uh, high lipid content.  the smoke has citronella-like
qualities and keeps biting insects away...

Yeah, but what about the important thing?!  How big of a bang does
the can make when it explodes at vanagon campouts?

/martha