Dear BYB: Thank you for words kinder than I deserve. My dictionary says that the British spelling is plough. I use both without noticing until someone else points out my inconsistency. And of course, in discussing the poem, I focussed on the literal aspects from which Frost developed his allegories. I am sure the curmudgeon neighbor would have been bewildered if Frost had told him the poetic interpretation of his blunt apothegm.