Which is what I did--consider that the usual way has you pulling on
 the vavle (toward you) to turn the water on--just what you don't want
 if you're hands are full of sticky dough.  With the direction
 reversed, you can bump the water on with your elbow.  Another benefit
 is that the faucet handles don't protrude into the sink when the
 water's on. 
There's a customer toilet in a shop somewhere in the London area (I am
tryuign to remembr where) where the washbasin has a pair of taps like
this. It's fairly obvious which way you have ot move the levers when you
want to turn them on (moving them the other way would push them into the
wall), but every time I've used it, I forget which way is off and end up
turning at least one tap on full-blast. Not that it does any real harm :-)
As a Physicist (at leat on paper) it annoys me that clod taps are
coloured blue and hot taps are coloured red (at least over here). Red
heat is a lot colder than blue heat to me :-) But the convention is so
well-known that if I put my own taps the other way round, even I would
get it wrong sometimes...
-tony