Real Developers don't comment their code. If it was hard to write, it should be hard to understand and harder to modify. Real Developers don't document. Documentation is for simpletons who can't read listings or the object code from the dump. Real Developers don't draw flowcharts.
Flowcharts are the illiterate's form of documentation.
Real Developers don't read manuals. Reliance on a reference manual is the hallmark of the novice and the coward. RPG is for gum-chewing dimwits who maintain ancient payroll programs. They get excited over finite state analysis and nuclear reactor simulation. Real Developers don't write in APL, unless the whole program can be written on one line.