The Crazy Russian Hacker in the following video will show you how to open a can with the help of your hands and a concrete area.
This can be very useful if you ever find yourself in a situation when you need to open a can and there is not can opener nearby. This trick is very easy to be made.
This is one of the tricks that make the life easier.
Let us know about experience with this trick in the comments below! You can share any similar trick with us.