Circulated S Mint Proof Lincoln’s?? An Impossible set?

I was wondering, with average mintages of a few million, some pieces like a 1977 S cent must eventually end up in the general circulation stream. Imagine the difficulty in assembling a 1975 S forward set of circ/proofs in VF to XF? Probably someone could artificially wear a pocket full over time…..but doing it “not cheating”. Impossible?
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I would imagine the shield cents, being so recent, are the most challenging to find this way. I have found circulated proofs of every other denomination though.
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Define cheating
11.5$ Southern Dollars, The little “Big Easy” set
Artificially creating wear, circulation tarnish and contact marks