I frequently use a comment made by a couple of quilting instructors have used in class..."It's not a mistake, it's a design decision". there are so many things that turn out differently than we expected or even hoped, that we have to be flexible enough to leave some in...and those become design decisions...Yes, I designed that ruffle in one corner for a little surprise! Yes, I designed the cut-off points on this one just because I liked the look. Yes, I designed it so it has one block turned the opposite way because only God is perfect.
I make a lot of design decisions in my work, and no one is the wiser.