Q~ is such a cheesball design allowed elsewhere in the world?
We don't use it here in the U.K. -- All receptacle and switch terminals are screw types, although they use a different arrangement to American types. (They're more like the way you would place a conductor under the
end of a screw in a neutral bar rather than being wrapped around under the head.)
The "push-in" contacts are found in some appliances though, such as the trigger switch on power tools.
