It happened to me on Monday. I am beginning a scrap quilt using civil war repro fabrics. The four squares are Bear Paws and they are turned in different directions. It literally took me two hours with all the cutting, sewing, pressing, trimming then more sewing...then I noticed I had put them in the wrong directions. But after ripping and resewing I am fine with it and loving how it is coming out.
So I've been there done that too!!