Several years ago I had a Russian Engineer work for at a testing lab. We tested the compressive strength of concrete. Its a simple test, you load the concrete cylinder in a press that can exert up to 250,000 pounds of force, and break it, noting how much force it took.
It is common for "3000 PSI" concrete to break in excess of 4000 PSI. the 3000 PSI mixes are just that forgiving and often the owner of the concrete company will add 1/2 bag or so of cement to the mix--costs him very little and its cheap insurance.
Well, after breaking a bunch of concrete my Russian is a bit apprehensive. He tells me, " In my country someone would be going away for wasting so much cement." ( 3000 PSI design concrete better break very close to 3000 PSI; anything over 3200 PSI was views as a State crime as a waste of valuable resources.)

Another experience that reinforces my apprehension of a too-controlling government.

__________________
1982 300SD " Wotan" ..On the road as of Jan 8, 2007 with Historic Tags