> The first thing I ask myself when I see something that looks as wrong as this does is "Is it possible for this piece of code to be completely broken, and for no one to have noticed yet?"

Good reflex. In my first job out of school (big research lab), we would occasionally find odd bugs in the code base (as would be expected...bugs happen). The head of the project would often wonder, “how could the system ever have functioned with this bug? Someone must have deliberately tampered with the source to discredit us.”

The first few times I thought he was joking, but no: he seriously believed this and even tried to investigate.

This was years before source control, which would have answered the question.

Edit: fix iPad-caused typos