I recently overheard a conversation between my brother-in-law, John, and his son, my nephew, J.P.  I have been sheltering with them and my sister, Ronda, this summer at Ronda’s and John’s house in Iowa City, Iowa.  The conversation I overhead concerned an unexpected problem John and J.P. had run into while working on a home construction project.  I have witnessed many such construction projects because John and J.P. are accomplished do-it-yourselfers, a characteristic I admire but have never possessed.  Whether it is replacing a shower, putting stone on the front of the house, repairing the deck or the plumbing, or replacing the flooring in their motor home, I have never seen them go very...