But that happens in every discipline by every level of experience. I would put good money down that you yourself spent hours wondering why the hell you got dif

But that happens in every discipline by every level of experience. I would put good money down that you yourself spent hours wondering why the hell you got different results until you were in the shower and realised "Oh the salts!!" Yes he made a newbie mistake - but then again 4 developers at my work yesterday with something like 80 years experience spent hours not noticing a duplicated line I only hope you pointed out his mistake gently. If not maybe offer a beginners course :-)