This subject has been hashed out for decades. If the U-ground is mounted 'up' on kitchen-counter receptacles, the loose end of a roll of aluminum foil on the counter could more likely contact the hot/neutral pins from contact underneath; if reversed, the U-ground pin could limit that.
Sometimes we are all guilty of being "well frogs." That's living in a well and thinking it's the ocean.
[This message has been edited by Bjarney (edited 05-03-2002).]
