It was an afternoon when elements of Murphy’s Law loomed, not in cataclysmic ways, but merely gnawing tidbits of annoyance--for both me and others--that harkened us back to lessons of a children’s book, The Little Engine That Could. Millions of children first learned of “I-think-I-can” challenges, thanks to this little locomotive. (We who are long of tooth are likely in the “we’re-a...