learning survival techniques isn't just fun. It offers a lot of opportunities to stay alive when everyone is dying especially when hunting for food. In the modern day, survival is not just about getting into some remote areas or jungle and learn how to survive by eating some sort of animal meat or unknown leaves. It is also about getting the best of what is left or being able to take advantage of the things using limited resources. On this video, CrazyRussianHacker shows how to open a can without a can opener. Very useful when times get rough.