People deceived by glass walls

Glass walls that do not block light will bring the brightness and visibility of the interior indoors, giving a feeling of opening. However, it seems that despair is sometimes coming down due to its too high light transmittance.

Details are as below.
People who crash into the wall of politely cleaned glass.
YouTube - Funny Glass Prank


I've put on a lot of momentum, but down only for a moment.
YouTube - Glass Door


I bumped hard enough to get cracks.
YouTube - Clean Glass Door ... Too Clean - www.JLcustoms.co.uk


On the contrary there is nothing to think that there is a glass door.
YouTube - Glass Door


Prank it to open a glass door.
YouTube - Prank Glass Door


In the case of a cat.
YouTube - silly cat ... you can not open that