That actually could be fun. That's the pressure coming from whomever manages the project that turns it into a nightmare. Allow me however long I need to refactor someone else's mess and I'm having a field day.
I think what makes it not fun for me is seeing users screwed by things that shouldn't happen. Things we should have done right the first time. Things that can only happen because of bad technology choices. Things that take hours to fix for no good reason, things where the only reason a fix takes ten hours instead of two hours is that we're paying for bad decisions.
