A former student of ours had a fire refuelling an aiplane from a
plastic can. In Alaska. Cold, dry weather raises the risk considerably,
and an airplane recently landed may have more charge on it, too. Living
in Canada we regularly hear stories of fuelling accidents attributable
to static. Not too many years ago a guy got burnt when his coat,
rubbing on the wing, set off fuel fumes. How's that for being bit by
what you don't know?

Dan