<P> In 2007, NASCAR owner / driver Michael Waltrip and his team had severe penalties handed down by officials . Team Vice-President Bobby Kennedy and Crew Chief David Hyder of Waltrip's No. 55 were ejected from the Daytona International Speedway . Hyder was fined $100,000 for his involvement with lining fuel tanks and intake valves with Sterno . NASCAR also docked Waltrip 100 owner points and disqualified his qualifying speed for the Daytona 500 . Mid-week, NASCAR determined that the then unknown substance was Sterno . When the highly regulated NASCAR fuel was added, the Sterno would liquefy, giving the car an added octane boost . </P> <P> There are many instances of people drinking Sterno to become intoxicated, i.e. as a form of surrogate alcohol . Since the alcohol it contains is denatured, Sterno is poisonous . Bluesman Tommy Johnson alludes to the practice in his song Canned Heat Blues recorded in 1928 . </P> <P> The practice is said to have become popular during Prohibition and during the Great Depression in hobo camps, or "jungles", when the Sterno would be squeezed through cheesecloth or a sock and the resulting liquid mixed with fruit juice to make "jungle juice," "sock wine," or "squeeze". </P> <P> The 1956 American documentary On the Bowery includes footage of three homeless men straining Sterno cooking fuel to make "squeeze" and then drinking the alcohol . </P>

How long does a can of sterno last