I've always thought that most "expiration dates" were actually "go buy more dates" (no, we're not paying for them directly - and we have a stockpile of about 14 or 16 of them - but the pharma companies are not giving to the government); sort of akin to the TV ads for shaving cream that always show the dude applying a 6" thick layer.
As I have often told Her: If expiration dates were real, no bachelor would ever live to marriage.
Peter (who does, however, think all his guitars have expired, and thus he needs new ones........)