As someone trained to measure, calibrate, remeasure and check things others have made (usually to 4 decimal places but microns aren't unusual either), it is an ingrained habit to check my work. I compete with myself to guage improvement. I like my seams to match and my points to actually be there. I'm far more left brained than right. I use loved ones (and others) to point out errors with pattern and color because I'm trying to learn about these things. If I can't analyze what makes something really awesome or why something isn't working for me, what is the point of doing it? If I just accept status quo I would never improve.