Corieoulis (sp?) effect

Is it true that water when poured down the drain will swirl one direction more in the Northern Hemisphere than the Southern?  Not that it'll always swirl the same way in a particular hemisphere but does that location actually affect the chances it'll swirl in a direction?

>>9
fails
>>8
is right
coriolis/centrifugal forces are very real, if you're in a rotating reference frame (ie Earth)