Here's my relevant anecdote: I was working in a large telecoms company in Amsterdam when we had a problem with some hardware that needed fixed. Someone came ov

Here's my relevant anecdote: I was working in a large telecoms company in Amsterdam when we had a problem with some hardware that needed fixed. Someone came over to fix it the next morning and after a few hours it still wasn't resolved. I then asked my colleague who had been with the technician if it was likely to get fixed soon. He said something about how terrible the technician was and that got me confused as my colleague wasn't a hardware guy and I didn't quite know how he had assessed the technician. I pressed him a bit more and he said something like "you haven't seen him have you"? Which made me wonder - so is there something about this technician which will make it obvious on seeing him that he is bad? No prizes for guessing the first thing I noticed about the man when I went down to the server room.....