I had the opposite problem at a student intern gig. I hadn't experienced smart pointers before, and was double freeing memory accidentally. The fun part was tha

I had the opposite problem at a student intern gig. I hadn't experienced smart pointers before, and was double freeing memory accidentally. The fun part was that the unit tests for my code always worked. It was always someone else's code which appeared to break inconsistently after my change ;) You live, you learn. We picked it up remarkably quickly in the end, basically because the company had their process working right: clean codebase, solid testing, and regular code reviews.