On films and TV you always see characters puncture a regular car tire with something like a folding knife or a swiss army knife. How hard would it be in real life to do this?
This video advert shows a man easily puncturing and cutting a tire with a pocket knife.
This Mythbusters episode shows a snippet of Adam Savage puncturing a tire with a knife in the first 30 seconds. [Hat-tip: @ratchetfreak]
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