Negative Code is something that I've never been aware of before I started to attending school.
Before this, I would mostly copy/paste other work into the projects to make my customers their website. I only coded a few lines here and there to fix some things I could find out myself or I asked it on Stack Over Flow. I was almost always was the person below.

Knowing now how important it is to have the proper and understandable code I would not be reluctant to say, without having almost no copy of the work I did from that time, that it mostly was hold together by pieces of duct tape because of not knowing about negative coding.