Anyone who dishes out criticism should be able to take yours seriously and change his own code. That means you're partners in helping each other get better. Any

Anyone who dishes out criticism should be able to take yours seriously and change his own code. That means you're partners in helping each other get better. Anyone of your peers who thinks his $%^& smells like roses and everyone else's stinks should be avoided, passive-aggressively if needed (not talking managers who should tell you what to do).