Shaibana

On tv there is a commercial about a soap..
http://www.youtube.com/watch?v=rPAuJOQO0sc
the commercial is about a automatic soap dispencer with a sensor, so that u wont have to touch a button with your dirty hands...
But isnt this just unnesecairy?

wy do you clean your hands? becaus theyre dirty.
so what does it mather if you touch the dirty soap-button if ur gonna clean your hands after that?
the fact that the soap-button-thingy is dirty simply does Not mather!!