Beering-can / arrosoir a biere

This a wonderful invention for a better world...
This is A revolutionary invention...
This is the best of myself...

Let me introduce you the Beering can for a better world.

Please use notice below or don't call me if you injure yourself when using this world wide invention.
Note : video notice will be post soon...
Strictly follow the instruction numbering. Thanks you.
1: Open beer can and fill it with water (or let beer inside)
2: Gently switch on the beer can on the beer bottle. DO