When my father used to work laying pipe sometimes they would bring canned soup and such to the jobsite. No one ever had a can opener, so often they would use whatever was in reach. Screwdrivers, knives, pick-axe, almost anything that could stab a hole in the top and pry the metal worked fine enough. I do think they lost a couple cans trying to use the bull dozer to open them though. <img src="/images/graemlins/smirk.gif" alt="" />