The first point applies as well, to when his counterexample has happened. Who has not seen a piece of code that is so bad they don't even understand how it can

The first point applies as well, to when his counterexample has happened. Who has not seen a piece of code that is so bad they don't even understand how it can compile, coming out of a newbie? Doing strange undefined things in C comes to mind as a usual case where this happens.