This reminds me of a time not too long ago when I was teaching programming courses; at least one of the students would somehow manage to get one of these or other weird characters into source code, resulting in much confusion. On the bright side, I take advantage of the opportunity and an impromptu lesson in data representation and character encoding soon follows.
It's also one of the things where a hex editor is extremely useful --- even if you're not working on low-level, seeing the bits directly can be a great confirmation of correctness.
It's also one of the things where a hex editor is extremely useful --- even if you're not working on low-level, seeing the bits directly can be a great confirmation of correctness.