If you were somehow forced into and locked in your shed by a local gang of South American hoodlums, what A-Team type machine could you build and smash through the door with? Mine would be an old pram, powered by an electric strimmer, with an old bag of cement to give some oomfh. The "weapons" would consist of a spinning kayak paddle mounted to a cordless drill, with fishing hooks harry-blacked on the end for added effect. The only drawback would be the length of lead on the strimmer, but no-one would come within 15ft of my shed. Beware South American drug cartels!!