You found all the best sales. Now, you're ready to head for home. That doesn't sound good! The step under your feet shatters and falls away. There must be hundreds of metal teeth grinding away down there. The escalator has malfunctioned. And if you don't move quickly, you could be eaten by the machine. Why are sandals or athletic shoes the safest footwear? Why could the red button save a life? Is it helpful if you're good at jumping or vaulting?

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Whether it’s an earthquake, mudslide or shark attack, survive whatever awaits you. How To Survive shows how to endure life-threatening moments with science and survivor stories.

Note: This video is not intended to be a substitute for professional advice, diagnosis, or treatment. Always seek the advice of your physician or another qualified health provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you have seen on this channel. If you think you may have an emergency, call your doctor, the ambulance or the police immediately. Underknown does not recommend or endorse any specific tests, physicians, products, procedures, opinions, or other information that may be mentioned in this video. Reliance on any information provided by Underknown is solely at your own risk.

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