Folks, I see here a basic misunderstanding of Ma’ares Eyin. The inyan isn’t to appear to do something assur that others will think ill of you, it’s appearing to do something assur that others might think may be nuttar.”
Both are aspects of the same inyan. Some people will see you go into a treif restaurant and think you are eating there. Others will see a heilige yid walking into that restaurant and think, “WOW! McDonald’s must be KOSHER now!” Both reflect the ramifications of maris ayin.