Right the first time sparked! I only wish I had photoshopped the holes in. Some consumer (read sucker) will probably think these things are great and plug his space heater in one hole, and the outlet strip in the other. The shallow prong penetration is what bothered me too, and the thought of dust/debris building up between the cover and the receptacle is disturbing.

But as for the ground pin question...

[Linked Image from whisperscorner.com]

The real question is right or left? [Linked Image]