"Oppie" wrote in message
news:OOsGj.2355$rb6.245@trnddc01...
Phil's picture leads me to think that the Earth terminal should be top to
divert any debris that might land upon the circuits.

The physics electronics shop where I worked as a student hourly in college
years ago was done this way. It is a good idea, although I'd admit to be too
"bothered" by having just one or a few outlets "upside down" that I've never
done it when I've replaced an outlet or two in a house.