My second example (the one you replied to) doesn't require you to turn off compiler warnings. It might seem contrived, and it is, but it's the essence of a bug

My second example (the one you replied to) doesn't require you to turn off compiler warnings. It might seem contrived, and it is, but it's the essence of a bug that has happened in the real world, distilled to a 10 line example. And yeah, "use things properly or they will blow up", but enough people don't do that (or mostly do but occasionally slip up) that it becomes a problem.