I agree.....fix it right away. When I make the mistake, I usually have to wad it up, throw it on the floor, maybe stomp on it a couple of times (don't do this if there are still pins in it, I learned the hard way) and leave the room. After calming down, I take a nice cleansing breath and force myself to go back in and finish it. Otherwise, it gets stashed somewhere and I only find it years later.