About this time 25 years ago, in a fit of pique prompted by what I thought was an untimely weekend invasion of city folk seeking summer rentals, I wrote a column whose envoi, “go home scumbags,” sparked a six-week firestorm of reproval, each letter writer apparently thinking I’d been referring to him, when, in fact, I had been more enamored of the delightful rhythm of the phrase than put out by anyone in particular.