So, I'm working on a bit of code, trying to enhance a website editor so that it accepts different HTML tags. I finally find where in the code I need to make the changes, I've located the relevant bits of customizations I need to do, and I'm ready to make the changes.
I open up the module I'm going to need to modify, only to discover that the previous company who had built the site, had already made all of the changes needed, THEN COMMENTED THEM OUT.
If you're going to make the changes and fix a problem, go ahead and fix it. Don't just think about it, good lord, do it.