Simpson, married to his childhood sweetheart for almost 19 years, had walked out on his wife and kids and into the arms of a younger woman. The breakup surprised his wife, his friends and even Simpson himself. Looking back, he says, it was a classic midlife crisis.
In that we have already provided the definitive answer to this question elsewhere (relying on rum extract), we assume your follow-up is seeking a non-alcoholic substitute for rum (as extracts can be as alcoholic as or more alcoholic than the spirits they replace).
I've been asked on a couple of occasions about rum substitutions for cocktail recipes. For instance, if a recipe calls for Gold Puerto Rican rum, what sorts of rums will fit the bill? Similarly, if a recipe calls for something specific that you may not have on hand, such as Appleton VX, what can be used in its place?